Champions changes
Alistar
Pulverize (Q) can be buffered during Headbutt (W) to always cast when you reach the target.
Triumphant Roar (E) mana cost and cooldown increased.
Akali
Mark of the Assassin (Q)[/b] energy return is 40 at all levels instead of scaling up to 40 at max rank.
Shadow Dance (R) travel speed increased.
Corki
Phosphorus Bomb (Q) damage reduced.
Missile Barrage (R) missile recharge time increased.
Ekko
Timewinder (Q) cooldown decreased at early ranks.
Graves
New Destiny (Passive) no longer stuns Rift Scuttler, and you can no longer cancel the auto attack recoil with End of the Line (Q) or Collateral Damage (R).
End of the Line (Q) damage on second hit lowered and added brief animation before detonating after colliding with terrain.
Jax
Relentless Assault (Passive) stacks up to 8 instead of 6, but you get less attack speed per stack. Slightly more overall attack speed once fully stacked, but takes longer.
Illaoi
Test of Spirit (E) removed the delay when you miss and reduced mana cost starting at rank 2.
Vessels no longer have to last hit tentacles to count towards the debuff removal, just have hit it within 5 seconds.
Kog maw
Passive attack speed boost moved from Caustic Spittle (Q) to Bio-Arcane Barrage (W).
Bio-Arcane Barrage (W) now deals at least 15 bonus magic damage at all ranks.
Poppy
Hammer Shock (Q) lower base damage but slightly higher AD ratio, no longer only deals 80% damage to minions.
Heroic Charge (E) cooldown increased by 2 seconds at all ranks.
Keeper's Verdict (R) non-charged cast knockup time lowered.
Rengar
Landing just short of target on leaps has been removed.
Bola Strike (E) cast time lowered, begins slightly behind you when cast while leaping.
Xin Zhao
Battle Cry (W) given a small bonus AD ratio and every third attack has a crit attached that scales with level.
Audacious Charge (E) cooldown flat 12s at all ranks.
Ryze
Arcane Mastery (Passive) maintains same time limit, but also only lasts up to 5 casts, whichever is reached first ends the effect.
Desperate Power (R) cooldown lowered.
Zed
Death Mark (R) damage amplification lowered 5% at all ranks.
Ziggs
Mega Inferno Bomb (R) base damage increased, AP ratio increased, outer radius damage lowered.
DRAGON BUFFS
2nd Dragon stack changed from "+15% damage to turrets and buildings" to "Basic attacks burn turrets for 10-180 damage over 2 seconds".
4th Dragon stack changed from "+15% damage to monsters and minions" to "You take 20% less damage from turrets".
Alistar
Pulverize (Q) can be buffered during Headbutt (W) to always cast when you reach the target.
Triumphant Roar (E) mana cost and cooldown increased.
Akali
Mark of the Assassin (Q)[/b] energy return is 40 at all levels instead of scaling up to 40 at max rank.
Shadow Dance (R) travel speed increased.
Corki
Phosphorus Bomb (Q) damage reduced.
Missile Barrage (R) missile recharge time increased.
Ekko
Timewinder (Q) cooldown decreased at early ranks.
Graves
New Destiny (Passive) no longer stuns Rift Scuttler, and you can no longer cancel the auto attack recoil with End of the Line (Q) or Collateral Damage (R).
End of the Line (Q) damage on second hit lowered and added brief animation before detonating after colliding with terrain.
Jax
Relentless Assault (Passive) stacks up to 8 instead of 6, but you get less attack speed per stack. Slightly more overall attack speed once fully stacked, but takes longer.
Illaoi
Test of Spirit (E) removed the delay when you miss and reduced mana cost starting at rank 2.
Vessels no longer have to last hit tentacles to count towards the debuff removal, just have hit it within 5 seconds.
Kog maw
Passive attack speed boost moved from Caustic Spittle (Q) to Bio-Arcane Barrage (W).
Bio-Arcane Barrage (W) now deals at least 15 bonus magic damage at all ranks.
Poppy
Hammer Shock (Q) lower base damage but slightly higher AD ratio, no longer only deals 80% damage to minions.
Heroic Charge (E) cooldown increased by 2 seconds at all ranks.
Keeper's Verdict (R) non-charged cast knockup time lowered.
Rengar
Landing just short of target on leaps has been removed.
Bola Strike (E) cast time lowered, begins slightly behind you when cast while leaping.
Xin Zhao
Battle Cry (W) given a small bonus AD ratio and every third attack has a crit attached that scales with level.
Audacious Charge (E) cooldown flat 12s at all ranks.
Ryze
Arcane Mastery (Passive) maintains same time limit, but also only lasts up to 5 casts, whichever is reached first ends the effect.
Desperate Power (R) cooldown lowered.
Zed
Death Mark (R) damage amplification lowered 5% at all ranks.
Ziggs
Mega Inferno Bomb (R) base damage increased, AP ratio increased, outer radius damage lowered.
DRAGON BUFFS
2nd Dragon stack changed from "+15% damage to turrets and buildings" to "Basic attacks burn turrets for 10-180 damage over 2 seconds".
4th Dragon stack changed from "+15% damage to monsters and minions" to "You take 20% less damage from turrets".