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League of LegendsPatch 7.21
League WikiLeague of Legends Patch 7.21 was released on Oct 25, 2017. This update included changes to 19 champions, with 4 buffs, 2 nerfs, 13 adjustments.
Items
Nerfs (1)
Z-Drive Resonance
- •New Effect: Bonus damage is now doubled versus monsters, capped at a maximum of 600 damage.
Stats
- •Attack damage growth increased to 5 from 3.2.
Tiger Stance
- •AD ratio increased to 120/135/150/165/180% AD from 120/130/140/150/160% AD.
Phoenix Stance
- •Stance AP ratio increased to 60% AP from 45% AP.
Conquering Sands
- •Base damage reduced to 70/95/120/145/170 from 70/100/130/160/190.
Arise!
- •Soldier damage reduced to 60 to 180 (based on level) from 60 to 185 (based on level).
Stats
- •Base armor reduced to 22 from 27.
- •Armor growth reduced to 3 from 4.
- •Base magic resistance reduced to 27.1 from 32.1.
- •Magic resistance growth reduced to 0.75 from 1.25.
Fury of the North
- •Base resistances increased to 20/70/120 (at level 1/7/14) from 20/60/100 (at level 1/7/14).
- •Time-out duration changed to 2 seconds at all levels from 1/2/3 (at level 1/7/14).
- •Combat timer changed to 12 seconds at all levels from 15/12/9 (at level 1/7/14).
Permafrost
- •New Effect: Tooltip now mentions Permafrost's displacement effect.
- •Base damage reduced to 20/30/40/50/60 from 40/60/80/100/120.
Pulsefire
- •Yordle Snap Trap
- •Bug Fix: No longer get stuck with a blue overlay when an enemy is affected by Yordle Snap Trap.
Colossal Smash
- •AP ratio increased to 70% AP from 40% AP.
Winds of War
- •Base damage on gusts reduced to 50/80/110/140/170 from 60/95/130/165/200.
- •AP ratio on gusts increased to 90% AP from 75% AP.
- •Tornado maximum health ratio changed to 1% per 33 AP of target's maximum health from 2% of target's maximum health.
Shield of Durand
- •Damage reduction now splits into separate values for physical and magic damage.
- •New Effect: Magic damage reduction now scales at 1% per 20 AP .
- •New Effect: Physical damage reduction now scales at 1% per 40 AP .
- •Base physical damage reduction reduced to 10/12.5/15/17.5/20% from 20/25/30/35/40%.
- •Physical damage reduction MR ratio reduced to 4% per 100 bonus magic resistance from 8%.
Justice Punch
- •Base damage reduced to 100/130/160/190/220 from 100/140/180/220/260.
- •AP ratio increased to 90% AP from 70% AP.
Whimsy
- •Bug Fix: All of her skins no longer get stuck with a blue overlay when Whimsy is used on them while they are in combat.
Star Guardian
- •Bug Fix: No longer misses a light beam particle during her recall.
Tidecaller's Blessing
- •Bug Fix: Base skin and all her other skins properly play the correct SFX for auto-attacks empowered by Tidecaller's Blessing. The audio has actually been tweaked and made more apparent as well.
Defensive Ball Curl
- •Bonus armor ratio increased to 50/60/70/80/90% from 50/55/60/65/70%.
- •Bonus magic resistance reduced to 10 from 20.
- •Bonus magic resistance ratio reduced to 25/30/35/40/45% from 50/55/60/65/70%.
Headhunter
- •Thrill of the Hunt
- •Bug Fix: No longer incorrectly plays classic "Predator" SFX when he activates the ability.
Battlecast Alpha
- •Bug Fix: No longer incorrectly plays classic VO lines in addition to the correct ones.
Worlds 2013
- •Dark Passage
- •Bug Fix: Now properly plays the lantern-landing SFX when using Dark Passage.
General
- •Sterak's Gage is no longer listed in his recommended items.
Echoing Flames
- •Leg cooldown reduced to 30/20/10/5/2.5 (at level 1/6/9/11/13) from 30/25/20/15/10 (at level 1/6/9/11/13).
- •Removed: Leg cooldown being affected by cooldown reduction.
- •Maximum health ratio reduced to 2/3/4/6/8 (at level 1/6/9/11/13)% from 4.5/5.25/6/7/8 (at level 1/6/9/13/15)%.
Corrosive Charge
- •Mana cost changed to 50 at all ranks from 35/40/45/50/55.
- •Time before detonation reduced to 0.5 seconds from 0.85.
Fear Beyond Death
- •First case missile speed increased to 3200 from 2100.
Items
General
- •Mana charge cooldown changed to 3 times per 12 seconds from 2 times per 8 seconds.
- •New Effect: Pinging the item will now display how many charges you have.
General
- •New Effect: Pinging the item now tells your team whether you're currently unseen or not.
General
- •Armor increased to 100 from 90.
General
- •Mana gains per trigger increased to 5 from 4.
- •Mana charge cooldown changed to 3 times per 12 seconds from 2 times per 8 seconds.
- •New Effect: Pinging the item will now display how many charges you have.
General
- •Mana charge cooldown changed to 3 times per 12 seconds from 2 times per 8 seconds.
- •New Effect: Pinging the item will now display how many charges you have.
General
- •Attack speed reduced to 10% to 30% (based on target's level) from 20% to 35% (based on target's level).
- •On-hit damage reduced to 5 to 20 (based on target's level) from 20 to 35 (based on target's level).

Ekko
Evelynn
Gangplank
Udyr
Azir
Sejuani
Caitlyn
Cho'Gath
Draven
Galio
Lulu
Miss Fortune
Nami
Rammus
Rengar
Skarner
Thresh
Urgot
Xin Zhao
Archangel's Staff
Duskblade of Draktharr
Frozen Heart
Manamune
Tear of the Goddess
Ardent Censer