Skip to content
WRLoL
Home
Heimerdinger LoL Patch HistoryPC

Heimerdinger

Mage / Support

League of Legends (PC) switch games?

Heimerdinger was last buffed in Patch 26.3 (). Across 63 patches, Heimerdinger has received 16 buffs, 10 nerfs, 36 adjustments since release in Patch 0.9.25.34.

Abilities
Hextech AffinityPC
Passive - Hextech Affinity
Effect Radius: 300

Innate: Heimerdinger gains 20% bonus movement speed while near an allied turret or a H-28 G Evolution Turret or H-28 Q Apex Turret deployed by him.

H-28G Evolution TurretPC
Q - H-28G Evolution Turret
Cost: 20 Mana + 1 Turret Kit
CD: 1
Cast Time: 0.25
Range: 350

Active: Heimerdinger deploys a H-28 G Evolution Turret at the target location, which lasts until destroyed.

Heimerdinger periodically stocks a Turret Kit charge, up to a maximum of 3.

Up to 3 H-28 G Evolution Turrets can be deployed at a time, with those deployed beyond the maximum destroying the oldest one.

See Pets for more details about H-28 G Evolution Turrets.

H-28Q Apex TurretPC
Q - H-28Q Apex Turret
CD: 1
Cast Time: 0.25
Range: 450

UPGRADE!!! - Active: Heimerdinger deploys a H-28 Q Apex Turret at the target location, which lasts for 8 seconds.

H-28 Q Apex Turret scales with UPGRADE!!! rank.:

See Pets for more details about the H-28 Q Apex Turret.

Hextech Micro-RocketsPC
W - Hextech Micro-Rockets
Cost: 50 / 60 / 70 / 80 / 90 Mana
CD: 11 / 10 / 9 / 8 / 7
Cast Time: 0.25
Range: 1150

Active: Heimerdinger launches a wave of 5 rockets that converge upon the target location and fan beyond it up to a maximum range, with each one dealing magic damage to the first enemy it hits. Every rocket hitting an enemy champion grants 20% beam charge to all H-28 G Evolution Turret H-28 Q Apex Turret within 1000 range, up to a maximum of 100% beam charge when hitting 5 rockets on an enemy champion.

Initial Rocket Magic Damage: 50 / 75 / 100 / 125 / 150 (+ 55% AP)
Subsequent Rocket Magic Damage: 10 / 15 / 20 / 25 / 30 (+ 12% AP)
Total Subsequent Non-Minion Damage: 40 / 60 / 80 / 100 / 120 (+ 48% AP)
Combined Total Non-Minion Damage: 90 / 135 / 180 / 225 / 270 (+ 103% AP)
Subsequent Rocket Minion Damage: 30 / 45 / 60 / 75 / 90 (+ 36% AP)
Total Subsequent Minion Damage: 120 / 180 / 240 / 300 / 360 (+ 144% AP)
Combined Total Minion Damage: 170 / 255 / 340 / 425 / 510 (+ 199% AP)

Enemies can be hit by multiple rockets, but receive less damage from ones beyond the first. Against minions, this lesser damage is increased by 200%.

Hextech Rocket SwarmPC
W - Hextech Rocket Swarm
CD: 11 / 10 / 9 / 8 / 7
Cast Time: 0.25
Range: 1150

UPGRADE!!! - Active: Heimerdinger unleashes 4 waves of 5 rockets in quick succession that converge upon the target location. Each rocket deals magic damage to the first enemy hit.

Initial Rocket Damage: 135 / 180 / 225 (+ 45% AP)
Rockets 2-5 Magic Damage: 32 / 45 / 58 (+ 12% AP)
Rockets 6-20 Magic Damage: 16 / 22.5 / 29 (+ 6% AP)
Combined Total Non-Minion Damage: 503 / 697.5 / 892 (+ 183% AP)
Minion Damage per Rocket: 135 / 180 / 225 (+ 45% AP)
Combined Total Minion Damage: 2700 / 3600 / 4500 (+ 900% AP)

Enemies can be hit by multiple rockets. Champions and monsters receive less damage from the second to fifth rockets that hit them, which is reduced by 50% for rockets beyond the fifth. Minions instead always receive 100% of the initial damage from every single rocket.

CH-2 Electron Storm GrenadePC
E - CH-2 Electron Storm Grenade
Cost: 85 Mana
CD: 11
Cast Time: 0.25
Range: 925
Effect Radius: 250

Active: Heimerdinger hurls a grenade at the target location that detonates upon impact, dealing magic damage to nearby enemies and slow them by 35% for 2 seconds. If the grenade hits an enemy champion, all H-28 G Evolution Turret H-28 Q Apex Turret within 1000 range of the impact gain 100% beam charge.

Magic Damage: 60 / 100 / 140 / 180 / 220 (+ 60% AP)

Enemies hit at the center of the grenade's impact are also stun for 1.5 seconds.

CH-3X Lightning GrenadePC
E - CH-3X Lightning Grenade
CD: 11
Cast Time: 0.25
Range: 925
Effect Radius: 300

UPGRADE!!! - Active: Heimerdinger hurls a massive grenade at the target location that bounces a fixed distance 3 times in the cast direction. The grenade explodes upon landing each time to deal magic damage to nearby enemies and slow them by 35% for 2 seconds. Enemies hit at the center of the grenade's impact are additionally stun for 1.5 seconds.

Magic Damage: 100 / 200 / 300 (+ 60% AP)

Enemy champions can only be damaged once per cast, but can be slow and stun multiple times if circumstances permit.

UPGRADE!!!PC
R - UPGRADE!!!
Cost: 100 Mana
CD: 100 / 85 / 70
Cast Time: None

Active: Heimerdinger empowers his next basic ability for an additional effect, consuming the empowerment upon cast and placing UPGRADE!!! on full cooldown. These empowered abilities have the same cooldowns as their basic forms, deal modified damage, and do not have a mana cost. UPGRADE!!! can be recast after 3 seconds while the empowerment is available.

Recast: Heimerdinger ends UPGRADE!!! and puts it on a 3-second cooldown.

UPGRADE!!! can be used while affected by cast-inhibiting crowd control.

Base Stats

Health: 558
Health Per Level: 105
Mana: 385
Mana Per Level: 20
Attack Damage: 56
AD Per Level: 2.7
Attack Speed: 0.658
AS Per Level: 1.36
Armor: 19
Armor Per Level: 4.2
Magic Resist: 30
MR Per Level: 1.3
Movement Speed: 340
Range: 550
Health Regen: 7
HP Regen Per Level: 0.55
Mana Regen: 8
Mana Regen Per Level: 0.8
Patch 26.3buff

Slaps roof We can fit so many Arcane champs in this patch. Heimerdinger's been performing worse in the new season and he was balanced before then, so we're here to return him to his former glory. We know top lane Heimer can feel suffocating when his turrets are all setup, so we're looking to re-buff him in ways that allow him to be proactive instead of turtling.

Stats

  • Health growth increased to 105 from 101.

Hextech Micro-Rockets

  • Initial rocket base damage increased to 50/75/100/125/150 from 40/65/90/115/140.
Patch 25.19change

Hextech Micro-Rockets

  • Bug Fix: Tooltip now correctly calculates the rockets' total base damage.
Patch 25.15buff

CH-2 Electron Storm Grenade

  • Bug Fix: Grenade radius for H-28G Evolution Turret / H-28Q Apex Turret aggro purposes increased to equal its damage radius (250) from previously 210, in accordance with patch 7.10 changes.
Patch 25.14change

Hazmat

  • Hextech Micro-Rockets
  • Bug Fix: Restored on-hit SFX.
Patch 25.S1.3change

H-28G Evolution Turret

  • Bug Fix: Turret attacks against champions no longer trigger minion call-for-help against the summoner (if in valid range).

UPGRADE!!!

  • Bug Fix: No longer allows all abilities to gain the effects of Axiom Arcanist while UPGRADE!!! has been activated and until it is deactivated by the player or otherwise sealed.
Patch 14.24change

H-28G Evolution Turret

  • Bug Fix: Floating charge count VFX no longer resets every 0.25 seconds when 2 trinket wards are available.
  • Bug Fix: Turret death SFX no longer plays repeatedly if the turret is destroyed near its deactivation time.
Patch 14.11change

H-28G Evolution Turret

  • Bug Fix: Ability is no longer sometimes locked out even when charges were available, because of the recharge cooldown being desynced from the ability's charge count as they are used.
  • Undocumented: Heimerdinger no longer has a buff that tracks his charges and the recharge timer. This buff was also previously desynced from his actual charge count.
  • Bug Fix: The floating charge count on his VFX around his model is now synced with the actual amount of available charges on the ability.
Patch 14.2buff

H-28G Evolution Turret

  • New Effect: Now updates its stats every 1 second in order to reflect level ups, rank ups, and the caster's changes in ability power.
  • Bug Fix: Warden's Mail and Randuin's Omen no longer improperly slow their attack speed.

H-28Q Apex Turret

  • New Effect: Now updates its stats every 1 second in order to reflect level ups, rank ups, and the caster's changes in ability power.
Patch 13.22buff

Stats

  • Base attack speed increased to 0.658 from 0.625.
  • Attack windup reduced to 20% from 20.078125%.
Patch 13.15buff

UPGRADE!!!

  • H-28Q Apex Turret
  • Base health changed to 725 to 1525 (based on level) from 850 to 1450 (based on level).
  • Health AP ratio changed to 50% AP at all levels from 25 to 200% (based on level) AP.
  • Armor increased to 30 to 90 (based on level) from 10 to 80 (based on level).
  • Magic resistance increased to 30 to 90 (based on level) from 25 to 65 (based on level).
Patch 13.7change

H-28G Evolution Turret

  • Undocumented: Now begins the game with one charge available instead of three.
  • Known Bug: Spawning or respawning will cause the buff to not correctly track his charges, showing three charges available instead of one. This is further de-synced as turrets are placed and destroyed (and only syncs up when he has no turrets deployed and three charges actually available).
  • Reminder that the count on his VFX around his model is synced up with the count on the buff bar, not on his Q.

UPGRADE!!!

  • Undocumented/Bug Fix: No longer automatically refreshes the cooldowns of Hextech Micro-Rockets or CH-2 Electron Storm Grenade when cast (including when the ability is canceled).
Patch 13.1bchange

H-28G Evolution Turret

  • Turret base health reduced to 130 to 640 (based on level) from 175 to 700 (based on level).
  • Turret health AP ratio increased to 5 to 45% (based on level) AP from 5 to 40% (based on level) AP.

Hextech Micro-Rockets

  • Initial rocket base damage reduced to 40/65/90/115/140 from 50/75/100/125/150.
  • Initial rocket AP ratio increased to 55% AP from 45% AP.
Patch 12.12buff

Q standard turret base health and damage increased. E cooldown decreased.

H-28G Evolution Turret

  • Turret base damage increased to 7/11/15/19/23 from 6/9/12/15/18.
  • Turret base health increased to 175 to 700 (based on level) from 150 to 575 (based on level).

CH-2 Electron Storm Grenade

  • Cooldown reduced to 11 seconds from 12.
Patch 12.10buff

Stats

  • Base health increased to 558 from 488.
  • Health growth increased to 101 from 87.
  • Armor growth increased to 4.2 from 3.
  • Magic resistance growth increased to 1.3 from 0.5.
Patch 12.1change

H-28G Evolution Turret

  • Bug Fix: Deactivation sound effects have been restored for several of his skins.

CH-2 Electron Storm Grenade

  • Bug Fix: Explosion sound effects no longer play multiple times upon hitting an enemy.
Patch 11.9nerf

W initial rocket damage decreased later.

Hextech Micro-Rockets

  • Initial rocket base damage reduced to 50/75/100/125/150 from 50/80/110/140/170.
  • Subsequent rocket base damage reduced to 10/15/20/25/30 from 10/16/22/28/34.
  • Maximum base damage: 90/135/180/225/270 from 90/144/198/252/306.
Patch 11.1change

Stats

  • Base attack damage increased to 56 from 55.536.
  • Base armor reduced to 19 from 19.04.
Patch 10.15change

H-28G Evolution Turret

  • Bug Fix: Turret now properly triggers Manaflow Band.
Patch 10.14change

H-28G Evolution Turret

  • Bug Fix: Approaching and triggering his turrets no longer triggers Bami's Cinder.
Patch 9.24bnerf

W base damage decreased. Empowered E damage decreased.

Hextech Micro-Rockets

  • Initial rocket base damage reduced to 50/80/110/140/170 from 60/90/120/150/180.
  • Subsequent rocket base damage reduced to 10/16/22/28/34 from 12/18/24/30/36.
  • Maximum base damage: 90/144/198/252/306 from 108/162/216/270/324.

CH-3X Lightning Grenade

  • Base damage reduced to 100/200/300 from 150/250/350.
  • AP ratio reduced to 60% AP from 75% AP.
Patch 9.21change

UPGRADE!!!

  • Bug Fix: Tooltip no longer mentions that his CH-3X Lightning Grenade slow is improved to 80%.
Patch 9.19buff

Q and R turret AP ratio increased. E stun duration increased.

H-28G Evolution Turret

  • Turret basic attack AP ratio increased to 35% AP from 30% AP.

H-28Q Apex Turret

  • Turret basic attack AP ratio increased to 35% AP from 30% AP.

CH-2 Electron Storm Grenade

  • Stun duration increased to 1.5 seconds from 1.25.
Patch 9.6buff

H-28G Evolution Turret

  • New Effect: Now triggers effects that are triggered by pets (i.e. on-ability-hit effects). Turret lasers, ult turrets shots, and ult turret lasers are classified as AoE effects, too.
Patch 9.1buff

H-28G Evolution Turret

  • New Effect: Can now ping the number of turrets available or time until next turret if none are available.
Patch 8.24change

H-28G Evolution Turret

  • Bug Fix: Beam attack cooldown now once again scales with cooldown reduction.
  • Turret stats have been moved into the expanded tooltip (hold SHIFT). Expanded tooltip now indicates that turret health scales off of Heimerdinger's ability power.

Hextech Micro-Rockets

  • Bug Fix: Tooltip now notes the actual calculation for minion damage instead of noting an incorrect and irrelevant "60% damage" modifier.

Hextech Rocket Swarm

  • Missile 1 damage unchanged.
  • Missiles 2 to 5 base damage increased to 32/45/58 from 28/39/49.
  • Missiles 6 to 20 base damage reduced to 50% of lesser base damage from 60% (now matches AP ratio modifier).
  • Missiles 6 to 20 base damage reduced to 16/22.5/29 from 16.8/23.4/29.4.
  • Maximum base damage: 503/697.5/892 from 499/687/862.
Patch 8.22change

Dragon Trainer

  • Bug Fix: No longer has redundant death SFX.
  • Bug Fix: Is no longer missing dance SFX.
Patch 8.9change

Stats

  • Base mana increased to 385 from 307.2.
  • Mana growth reduced to 20 from 40.
  • Base mana regeneration increased to 8 from 6.
Patch 8.1nerf

H-28Q Apex Turret

  • Beam base damage reduced to 100/140/180 from 200/270/340.
Patch 7.16change

H-28Q Apex Turret

  • Bug Fix: Beam attack no longer breaks for the rest of its duration if its target walks out of range during the beam attack's wind-up.
Patch 7.15change

Hextech Rocket Swarm

  • Bug Fix: Now correctly applies the subsequent rocket damage against Baron Nashor instead of dealing full damage.

CH-2 Electron Storm Grenade

  • Bug Fix: Sweeping a ward no longer plays the sound effects to it when he is in the game.

CH-3X Lightning Grenade

  • Bug Fix: No longer uses the old AP ratio of 60% for the second and third bounces.
Patch 7.12change

General

  • Bug Fix: Must now actually fire a basic attack to command turrets to focus a target. Issuing an attack command and immediately cancelling it no longer triggers the redirect.

CH-2 Electron Storm Grenade

  • Bug Fix: Now properly charges nearby turret beam attacks even if it kills an enemy.
Patch 7.11nerf

H-28G Evolution Turret

  • Removed: Turrets killed increasing the minion killed stat. H-28Q Apex Turret still increases the creep score.
Patch 7.10change

Stats

  • Base health regeneration reduced to 7 from 11.008.
  • Health regeneration growth reduced to 0.55 from 1.75.

Hextech Affinity

  • Renamed to Hextech Affinity from Techmaturgical Repair Bots.
  • New Effect: Grants 20% bonus movement speed while near allied turrets (his H-28G Evolution Turret and the map's) (300 range).
  • Removed: Heimerdinger grants nearby allied champions and his H-28G Evolution Turret 10/15/20/25/30 (at level 1/5/9/13/17) health regeneration, persisting for 5 seconds after they move out of range or his death (1000 range).

H-28G Evolution Turret

  • Maximum charges increased to 3 at all ranks from 1/1/2/2/3.
  • Recharge timer reduced to 20 seconds at all ranks from 24/23/22/21/20.
  • Cannon base damage reduced to 6/9/12/15/18 from 12/18/23/29/34.
  • Cannon AP ratio increased to 30% AP from 15% AP.
  • Beam base damage reduced to 40/60/80/100/120 from 40/60/80/105/130.
  • Removed: Turrets no longer prioritize nearby enemy champions or champions that attack them.
  • Removed: Turrets no longer briefly remain active after Heimerdinger leaves the area.
  • Beam attack generation rate per second reduced to 1.1% from 6.25%.
  • Beam attack charge time increased to 90 seconds from 16.
  • Removed: Turrets no longer gain 1/2/3/4/5% beam charge for each of their basic attacks.
  • Removed: Turrets no longer spawn with 70% beam charge.
  • New Effect: The charge bar is now white instead of dark blue.

Hextech Micro-Rockets

  • Mana cost reduced to 50/60/70/80/90 from 70/80/90/100/110.
  • Cooldown reduced to 11/10/9/8/7 seconds from 11 at all ranks.
  • New Effect: Each rocket that hits a champion grants 20% beam charge to all turrets within 1000 range of the damage, up to a maximum of 100% if all five rockets hit.

CH-2 Electron Storm Grenade

  • Cooldown changed to 12 seconds at all ranks from 18/16/14/12/10.
  • Grenade radius increased to 250 from 210. Stun radius unchanged.
  • New Effect: If the grenade hits a champion, all turrets within 1000 range of the damage gain 100% beam charge.
  • New Effect: Heimerdinger can now lob the grenade onto himself.

CH-3X Lightning Grenade

  • Base damage increased to 150/250/350 from 150/200/250.
  • AP ratio increased to 75% AP from 60% AP.
Patch 7.2buff

Stats

  • Undocumented: Health regeneration increased to 11.008 from 11.005.
Patch 6.24nerf

Hextech Micro-Rockets

  • Bug Fix: Rockets beyond the first now deal reduced damage to the Poro King (he's now treated as a monster, rather than a minion).
Patch 6.1change

CH-2 Electron Storm Grenade

  • Bug Fix: Fixed a bug where Heimerdinger's grenade was granting too much vision for the duration.
Patch 4.20change

Stats

  • Base health regeneration increased to 11.005 from 0.
  • Health regeneration growth increased to 1.75 from 0.6.

Techmaturgical Repair Bots

  • Removed: No longer affects Heimerdinger.
Patch 4.17change

UPGRADE!!!

  • Can now be primed while Heimerdinger is disabled.
Patch 4.11change

H-28G Evolution Turret

  • Added a new 'Turret Focus Target' particle for Heimerdinger when he marks an opponent for targeting by turrets.
  • Added new 'Turret Aggro' and 'Turret Focus Aggro' particles for the player targeted by Heimerdinger's turrets.
Patch 4.5nerf

H-28G Evolution Turret

  • Cannon damage changed to 12 / 18 / 23 / 29 / 34 (+ 15% AP) from 15 / 22 / 29 / 36 / 42 (+ 12.5% AP).
  • Beam damage changed to 40 / 60 / 80 / 105 / 130 (+ 55% AP) from 50 / 75 / 100 / 125 / 150 (+ 50% AP).
  • Beam cooldown increased to 16 seconds.

H-28Q Apex Turret

  • Basic attack AP ratio reduced to 30% from 33%.
  • Laser beam damage reduced to 200 / 270 / 340 (+ 70% AP) from 225 / 300 / 375 (+ 80% AP).
  • Laser beam no longer recharges twice as fast.
  • On-hit charge generation increased to 20%.
Patch 4.4buff

General

  • Visual update.
  • Complete visual upgrade across all skins.
  • New artwork for Original.
  • New voiceover.
  • New lore.

Stats

  • Movement speed increased to 340 from 335.

H-28G Evolution Turret

  • New Effect: Turret health has a 5 to 40% (based on level) AP ratio.
  • New Effect: Turret basic attacks generate 1/2/3/4/5% laser beam charge.
  • Removed: Laser beam recharge time is no longer affected by cooldown reduction.
Patch 3.14change

H-28G Evolution Turret

  • The skill reticle will now mark the age of each turret (1, 2 and 3; with 1 being the youngest).

H-28Q Apex Turret

  • Are now immune to disables.

CH-3X Lightning Grenade

  • Heimerdinger will now cast throw the grenade at maximum range if you attempt to cast outside of maximum range, rather than having Heimerdinger move forward to get in range.
Patch 3.13change

Stats

  • Base health regeneration reduced to 0 from 4.5.
  • Health regeneration per level increased to 0.6 from 0.55.
  • Mana per level reduced to 40 from 65.
  • Base mana regeneration reduced to 6 from 7.
  • Mana regeneration per level reduced to 0.6 from 0.65.
  • Base armor increased to 10 from 7.
  • Base attack damage increased to 53 from 49.24.
  • Attack damage per level reduced to 2.7 from 3.
  • Attack speed per level increased to 1.36% from 1.21%.
  • Movement speed increased to 335 from 325.

Techmaturgical Repair Bots

  • Removed: No longer benefits allied structures.
  • Health regeneration changed to 10/15/20/25/30 (at level 1/5/9/13/17) from 6/12/16/22 (at level 1/6/11/16).

H-28G Evolution Turret

  • Recharge cooldown reduced to 24/23/22/21/20 seconds from 25 at all ranks.
  • Active: Heimerdinger constructs a turret at the target location that has 125 (+ 25 * Heimerdinger's level) health and attacks the nearest enemy within 525 units with its cannon at 1.75 attack speed, dealing 15/21.75/28.5/35.25/42 (+ 12.5% AP) magic damage per attack. Every 12 seconds (reduced by cooldown reduction), it will fire a laser beam that tears through all enemies in a line, dealing 50/75/100/125/150 (+ 50% AP) magic damage to each. Turrets will prioritize Heimerdinger's targets and enemies attacking him.
  • Turrets deal 50% damage to enemy lane towers and deactivate after 8 seconds of Heimerdinger leaving their area (1000 units) or dying. Heimerdinger can stock up to 1/1/2/2/3 H-28G Evolution Turret charges and have up to 3 turrets deployed at any point, with the oldest one despawning upon a new one above the limit being deployed.
  • Cost: 20 mana + 1 charge.
  • Cast time: 0.25 seconds, Cast range: 350 units.

Hextech Micro-Rockets

  • Removed: No longer fires 3 rockets that acquire the nearest target(s).
  • Active: Heimerdinger launches a barrage of 5 rockets that converge upon the target location and fan out past it, each damaging the first enemy it hits. Targets take 60/90/120/150/180 (+ 45% AP) magic damage from the first rocket that hits them and 12/18/24/30/36 (+ 12% AP) magic damage from every subsequent rocket that hits them. Against minions, subsequent rockets deal 36/54/72/90/108 (+ 36% AP) each instead.
  • Cost: 70/80/90/100/110 mana.
  • Cooldown: 11 seconds.
  • Cast time: 0.25 seconds, Range: 1525 (starts 200 units behind Heimerdinger).

CH-2 Electron Storm Grenade

  • Renamed from CH-1 Concussion Grenade.
  • Missile speed increased to 1200 from 750.
  • Removed: No longer blind enemies.
  • Active: Heimerdinger hurls a grenade that explodes at the target location, dealing 60/100/140/180/220 (+ 60% AP) damage. Enemies in the grenade's explosion area are slowed by 35% for 2 seconds, and ones directly in its center are additionally stunned for 1.25 seconds.
  • Cost: 85 mana.
  • Cooldown: 18/16/14/12/10 seconds.
  • Target range: 925 units, Effect radius: 210 (slow) / 100 (stun)

UPGRADE!!!

  • Removed - Passive: Heimerdinger gains 10/15/20% Cooldown Reduction.
  • Removed - Active: All live H-28G Evolution Turret heal to maximum health upon cast. For the next 10 seconds, turrets become empowered to fire frost attacks that slow targets by 20/25/30% for 2 seconds, Hextech Micro-Rockets fires 5 missiles instead of 3, and CH-1 Concussion Grenade travels 250 units/second faster (750 to 1000).
  • New - Toggle: (3 second cooldown) Heimerdinger's next basic ability becomes empowered and costs no mana:
  • Cost: 100 mana.
  • Cooldown: 100/85/70 seconds.
  • Cast time: None.
  • Ability details:
  • H-28Q Apex Turret - Active: Heimerdinger constructs an improved turret model that lasts for 8 seconds and slows enemies hit by 25% for 2 seconds with its attacks. The Apex turret has 1250 health, 1.05 attack speed and 600 attack range. Its cannon attacks deal 90/110/130 (+ 33% AP) magic damage and its beam attacks deal 225/300/375 (+ 80% AP) magic damage. Both attacks will additionally splash in a small area around their primary target, dealing the same damage. The Apex turret's beam cooldown is halved to 6 seconds.
  • Deployed H-28Q Apex Turrets do not count toward H-28G Evolution Turrets' limit (nor consume a charge).
  • Hextech Rocket Swarm - Active: Heimerdinger unleashes 4 waves of 5 rockets in quick succession; each rocket damages the first enemy it hits. Targets take 135/180/225 (+ 45% AP) magic damage from the first rocket that hits them, 28/39/49 (+ 12% AP) from the second to fifth rocket that hits them and 16.8/23.4/29.4 (+ 6% AP) from every subsequent rocket that hits them. Against minions, each subsequent rocket deals the initial damage again.
  • CH-3X Lightning Grenade - Active: Heimerdinger hurls a massive grenade, which bounces 3 times in the cast direction to deal 150/200/250 (+ 60% AP) magic damage. Both the slow and stun area are larger, and the stun lasts 1.5 seconds instead.
  • Improved Effect radius: 300 (slow) / 150 (stun)
Patch 3.12change

H-28G Evolution Turret

  • Fixed a bug that caused cooldown values to be extraordinarily high under certain conditions.
Patch 3.1change

Though these aren't all the Heimerdinger changes we'd eventually like to do, these are some quality of life adjustments that should help smooth out Heimer's current gameplay.

H-28G Evolution Turret

  • Now displays timer of when Heimerdinger will get his next ammo charge.
  • Turrets will now attempt to prioritize enemies hit by Heimerdinger's basic attacks or his CH-1 Concussion Grenade.

UPGRADE!!!

  • Cast time removed.
Patch 1.0.0.134change

H-28G Evolution Turret

  • Fixed a bug where it would not be demolished when he died if it was being targeted by Teleport.
Patch 1.0.0.133change

H-28G Evolution Turret

  • Fixed a bug where it would not be demolished when he died if it was being targeted by Teleport.
Patch 1.0.0.123change

H-28G Evolution Turret

  • Heimerdinger will now place Frost Turrets if he places a turret while UPGRADE!!! is active.
  • Fixed a bug where turrets could be moved by Crystallize, Pillar of Filth, and Cataclysm.
Patch 1.0.0.120buff

H-28G Evolution Turret

  • Mana cost reduced to 70/80/90/100/110 from 120/125/130/135/140.
  • Fixed a bug where his turrets would not assist him if damage from an enemy champion was absorbed by shields.
Patch 1.0.0.109buff

Techmaturgical Repair Bots

  • Fixed a bug where it provided less health regeneration than stated.

H-28G Evolution Turret

  • Improved Turret AI so they will prioritize attacking champions that attack Heimerdinger.
  • Turrets now work on an ammo system (25 second ammo cooldown).
  • 1 second placement cooldown.
  • Level up progression reversed for ranks 2 and 3.
  • Rank 2 - Places armor and magic resistance reducing green turrets.
  • Rank 3 - Places two turrets.
  • Turrets bonus health on rank 4 increased to 125 from 100.
  • Turrets now gain 15 health per Heimerdinger level down from 21.
  • Turret magic resistance increased to 80 from 60.
  • Tooltip now references 'turrets' rather than 'towers'.

UPGRADE!!!

  • Now also increases number of Hextech Micro-Rockets to 5 while active.
  • Now also increases missile speed on CH-1 Concussion Grenade to 1000 from 750 while active.
  • Fixed a bug where UPGRADE!!! turrets would stop firing resistance piercing and area-effect shots.
Patch 1.0.0.100change

UPGRADE!!!

  • Tooltip updated to correctly state that the slow is actually 20/25/30% not 25/30/35%
Patch 1.0.0.99change

H-28G Evolution Turret

  • Maximum turrets changed to 1/2/2/2/2 from 1/2/2/3/3.
  • Rank 4 now grants +100 bonus health to new turrets.
  • Cooldown modified to 26/23/20/17/14 seconds from 24/22/20/18/16.

CH-1 Concussion Grenade

  • Ability power ratio increased to 0.6 from 0.55.
  • No longer damages structures.
Patch 1.0.0.98change

H-28G Evolution Turret

  • Base damage increased to 30/38/46/54/62 from 28/36/44/52/60.
  • Ability power ratio reduced to 0.2 from 0.25.
  • Turrets no longer gain bonus attack damage based how many hits they have landed.
Patch 1.0.0.97nerf

H-28G Evolution Turret

  • Fixed a bug in which level 2 and level 3 turrets were dealing full damage to towers.

CH-1 Concussion Grenade

  • Ability power ratio reduced to 0.55 from 0.7.
  • Range reduced to 925 from 1000.
Patch 1.0.0.96nerf

H-28G Evolution Turret

  • Tooltip has been updated to indicate that turrets do magic damage.

CH-1 Concussion Grenade

  • Now only deals 50% damage to turrets.
  • Cooldown increased to 13/12/11/10/9 seconds from 12/11/10/9/8.
Patch 1.0.0.94bbuff

H-28G Evolution Turret

  • Now deals half damage to towers.

CH-1 Concussion Grenade

  • Cooldown reduced to 12/11/10/9/8 seconds from 14/13/12/11/10.
Patch 1.0.0.94change

H-28G Evolution Turret

  • Fixed a bug where turrets were targeting incorrectly.
Patch 1.0.0.81change

H-28G Evolution Turret Remade

  • Green turrets now spawn at level 3 and 4 of this skill, reducing armor and magic resist on hit.
  • Red turrets spawn at level 5 and cause area of effect damage on hit.
  • Turrets damage increased to 28/36/44/52/60 from 20/26/32/38/44.
  • Turrets now attack 50% faster for the first 6 seconds after placement.
  • Max turrets lowered to 1/2/2/3/3 from 2/3/4/5/6.
  • New missile particles added for green and red turrets.

Hextech Micro-Rockets

  • Cooldown reduced to 10 seconds from 20.
  • Fires 3 rockets at all levels.
  • Rockets now hit the 3 nearest enemy minions or champions, instead of just champions.
  • Ability power ratio reduced to 0.55 from 0.8.
  • Base damage reduced to 85/135/185/235/285 from 90/150/210/270/330.

UPGRADE!!! Remade

  • Retains the 10/15/20% cooldown reduction passive.
  • On activation, all existing evolution turrets are healed for 100% of their max hit points.
  • In addition, all existing evolution turrets fire 20/25/30% movement slowing missiles for 10 seconds.
  • Cost: 90 mana
  • Cooldown: 120/105/90 seconds
Patch 1.0.0.72nerf

General

  • Fixed tooltips.

H-28G Evolution Turret

  • Fixed a bug that allowed him to place more turrets than the maximum.

Hextech Micro-Rockets

  • Range reduced to 1000 from 1200.
Patch 1.0.0.70change

Hextech Micro-Rockets

  • Fixed a bug that caused them to deal instant damage.
Patch 1.0.0.63buff

Stats

  • Basic attack projectile speed increased to 1400 from 1200.
  • Health per level increased to 75 from 70.
  • Damage per level increased to 3 from 2.5.

H-28G Evolution Turret

  • Gold given on death reduced to 12 from 15.
  • Turret range increased to 575 from 550.

Hextech Micro-Rockets remade

  • Heimerdinger fires a rocket at up to 1/1/2/2/3 random visible enemy champion.
  • Cooldown reduced to 20 seconds from 23.
  • Mana cost reduced to 70/90/110/130/150 from 80/105/130/155/180.

CH-1 Concussion Grenade

  • Particle no longer shows through the fog of war.
  • Projectile speed increased to 750 from 650.

UPGRADE!!!

  • Mana cost reduced to 100 from 125.
Patch 1.0.0.32nerf

CH-1 Concussion Grenade

  • Blind duration reduced to 1/1.5/2/2.5/3 seconds from 1.5/2/2.5/3/3.5.

H-28G Evolution Turret

  • Magic resist reduced to 100 from 120.
  • Magic resist will reduce damage dealt to turrets.
  • Turrets now detonate upon Heimerdinger's death.
Patch 0.9.25.34new

Heimerdinger added to League of Legends

Techmaturgical Repair Bots (Innate)

  • Heimerdinger gives nearby allied turrets and champions 6/12/16/22 health regen per 5.

H-28G Evolution Turret (Q)

  • Heimerdinger lays down a machine gun turret. This turret gains experience from attacking units, and can be upgraded.

Hextech Micro-Rockets (W)

  • Heimerdinger fires a number of champion seeking missiles that randomly target champions within range.

CH-1 Concussion Grenade (E)

  • Heimerdinger lobs a grenade at a location, dealing damage to enemy units and structures, as well as stunning anyone directly hit and blinding nearby units.

UPGRADE!!! (Ultimate)

  • Passive: cooldown reduction.
  • Active: Target an Evolution Turret to heal it, double its attack speed for 10 seconds, add 200 health, 10 damage, 10 armor, and upgrade it to:
  • Level 2: Ur'Anium Rounds - Basic attacks reduce armor & magic resist by 1.
  • Level 3: Explosive Cartridges - Basic attacks deal AoE damage.