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Wild RiftLoLClassic
Kassadin League Classic Patch HistoryLC

Kassadin Patch History

Assassin / Mage

League ClassicAlso in: Kassadin in Wild RiftKassadin in League of Legends

Kassadin Current Status

Kassadin was last adjusted in Patch 26.19 (). Across 2 patches, Kassadin has received 1 adjustment since release in Patch 26.15.

Build GuideRod of AgesRabadon's DeathcapVoid StaffMid

Kassadin Build Guide (Mid)

Kassadin exists to make mages regret picking mages: Void Stone eats their poke, Null Sphere silences their combo, and from level six Riftwalk turns every gank, roam and fight into an unwinnable game of tag.

Summoner Spells

FlashIgnite

Runes

  • Mark of Magic Penetration9x Mark of Magic Penetration (+1 Magic Penetration)
  • Seal of Armor9x Seal of Armor (+1 Armor)
  • Glyph of Ability Power9x Glyph of Ability Power (+1.2 Ability Power)
  • Quintessence of Ability Power3x Quintessence of Ability Power (+5 Ability Power)

Magic penetration and ability power make Null Sphere trades decisive; armor seals cover the attack-damage matchups where Void Stone does not.

Masteries 21/0/9

Offense (21)
Summoner's Wrath 0/10/1
Fury 0/40/4
Sorcery 4/44/4
Butcher 0/20/2
Deadliness 0/40/4
Blast 4/44/4
Destruction 0/10/1
Havoc 3/33/3
Weapon Expertise 0/10/1
Arcane Knowledge 1/11/1
Lethality 0/20/2
Brute Force 0/20/2
Mental Force 3/33/3
Spellsword 1/11/1
Frenzy 0/10/1
Sunder 0/30/3
Archmage 4/44/4
Executioner 1/11/1
Utility (9)
Summoner's Insight 1/11/1
Wanderer 0/30/3
Meditation 3/33/3
Improved Recall 0/10/1
Scout 0/10/1
Mastermind 2/32/3
Expanded Mind 3/33/3
Artificer 0/20/2
Greed 0/40/4
Runic Affinity 0/10/1
Vampirism 0/30/3
Biscuiteer 0/10/1
Wealth 0/20/2
Awareness 0/40/4
Strength of Spirit 0/30/3
Explorer 0/10/1
Pickpocket 0/10/1
Intelligence 0/30/3
Nimble 0/10/1

21/0/9 caster page: the full ability power line, with utility for the enormous mana bill Riftwalk stacking runs up.

Skill Order R > Q > E > W

123456789101112131415161718
Null SphereQQQQQ
Nether BladeWWWWW
Force PulseEEEEE
RiftwalkRRR

Max Null Sphere - damage plus silence is the trade pattern. Force Pulse second for teamfights; Nether Blade's one point covers the mana story until late.

Item Build

Starting

Doran's RingDoran's RingHealth Potionx2Health Potion

A ring start; play safe until six.

Early goals

Catalyst the ProtectorCatalyst the ProtectorBoots of SpeedBoots of SpeedDoran's RingDoran's Ring

Catalyst is the survival item that becomes your scaling item.

Core build

Rod of AgesRod of AgesRabadon's DeathcapRabadon's DeathcapVoid StaffVoid Staff

Rod of Ages funds reckless Riftwalks, Deathcap makes them lethal, Void Staff keeps the assassinations honest.

Boots

Sorcerer's ShoesSorcerer's ShoesMercury's TreadsMercury's Treads

Sorcerer's Shoes for kill pressure; Mercury's Treads into heavy crowd control.

Situational

Zhonya's HourglassZhonya's HourglassLich BaneLich BaneArchangel's StaffArchangel's StaffBanshee's VeilBanshee's Veil

Zhonya's for the dive, Lich Bane procs on every Riftwalk, Archangel's if you want infinite jumps, Banshee's against picks.

Example final build

Sorcerer's ShoesSorcerer's ShoesRod of AgesRod of AgesRabadon's DeathcapRabadon's DeathcapVoid StaffVoid StaffZhonya's HourglassZhonya's HourglassLich BaneLich Bane

A standard anti-mage assassin build.

Item path informed in part by the League of Legends Wiki's 2013 strategy page (CC BY-SA).

Ability DetailsFull kit, stats, and scaling
Void StoneLC
Passive - Void Stone

Kassadin takes 15% reduced magic damage and converts 15% of incoming magic damage into Attack Speed for 4 seconds.

Null SphereLC
Q - Null Sphere
Cost: 70/80/90/100/110 Mana
CD: 9

Kassadin fires a void bolt, dealing 60/105/150/195/240 (+70% AP) magic damage and Silencing the target for 1/1.25/1.5/1.75/2 second(s).

Nether BladeLC
W - Nether Blade
Cost: 25 Mana
CD: 12

Passive: Kassadin's basic attacks draw energy from the void, restoring 8/11/14/17/20 Mana each hit, increased to 24/33/42/51/60 Mana against Champions. Active: Kassadin charges his nether blade for 5 seconds causing his basic attacks to deal an additional 30/45/60/75/90 (+30% AP) magic damage.

Force PulseLC
E - Force Pulse
Cost: 80 Mana
CD: 6

Kassadin draws energy from spells cast in his vicinity, gaining a charge whenever a spell is cast near him. Upon reaching 6 charges, Kassadin can use Force Pulse to deal 80/130/180/230/280 (+70% AP) magic damage and Slow enemies by 30/35/40/45/50% for 3 seconds in a cone in front of him.

RiftwalkLC
R - Riftwalk
Cost: 100 Mana
CD: 7/6/5

Kassadin teleports to a nearby location dealing 60/70/80 (+70% AP) magic damage to surrounding enemy units. Additionally, each subsequent Riftwalk within the next 8 seconds costs 100 additional Mana and deals 60/70/80 additional damage.

Base Stats

HP: 511
HP/lvl: 78
HP Regen: 1.49
AD: 56.2
AD/lvl: 3.9
Armor: 21.2
Armor/lvl: 3.2
MR: 31.25
Attack Range: 125
Attack Speed: 0.64
Move Speed: 340
Mana: 275

Kassadin Changes

Patch 26.19

change

As we've buffed up the bottom end of the mid lane pool, Kassadin has wound up as the actual worst-performing mid laner. Our primary buff is increasing his Riftwalk range. Instead of using his formerly Dominion-only 600 max range, he's regaining his full Summoner's Rift 700 range Riftwalk. We're also shipping adjustments that adhere more closely to his tuning during Worlds 2013.

Q - Null Sphere

  • Ability Power Ratio: 60% → 70%
  • Damage: 60 / 120 / 180 / 240 / 300 (+80% AP) → 80 / 130 / 180 / 230 / 280 (+70% AP)
  • Slow: 20 / 30 / 40 / 50 / 60% → 30 / 35 / 40 / 45 / 50%
  • Range: 600 → 700

Patch 26.15

new

Kassadin added to League Classic

Added to League Classic at launch.

[New] Champion

  • Kassadin joins the League Classic roster with their classic-era kit.

Related League Classic Champions

Kassadin League Classic FAQ

Frequently Asked Questions
When was Kassadin last changed in League Classic?
Kassadin was last adjusted in League Classic Patch 26.19, released September 22, 2026. That patch changed Q - Null Sphere (Ability Power Ratio: 60% → 70%).
How many times has Kassadin been buffed or nerfed in League Classic?
Kassadin has been changed in 2 League Classic patches: 1 adjustment.
Was Kassadin changed in League Classic Patch 26.20?
No - Kassadin was not changed in Patch 26.20. Its most recent change was in Patch 26.19.
What is the best Kassadin build in League Classic?
Kassadin's League Classic build guide is for Mid, with core items Rod of Ages, Rabadon's Deathcap and Void Staff. The full guide on this page covers items, runes, masteries and skill order.
When was Kassadin released in League Classic?
Kassadin was released in League Classic in Patch 26.15 on July 29, 2026.