* Shadow Dance
o Time to gain Essence of Shadow charges is reduced by cooldown reduction effects.
o Time to gain next charge does not progress while you are at maximum charges.
* Magic Resistance per Level increased to 1.25 from 0
o Increased the range to 800 from 700.
o Increased the base speed to 650 from 500.
* Missile Barrage
o Missile Barrage now scales off 20% of his total attack damage in addition to ability power.
o Time to store a missile is reduced by cooldown reduction effects.
o Time to store next missile does not progress while you are at maximum missiles stored.
o Corki respawns with 4 missiles.
* Magic Resistance per Level increased to 0.75 from 0.5
* Essence Flux
o Changed the attack speed increase to be additive rather than multiplicative.
o Reduced the cooldown to 9 seconds from 10 seconds.
* Trueshot Barrage
o Increased the AP ratio to 0.9 from 0.8.
* Dark Wind
o Cooldown reduced to 13 seconds from 14 seconds.
o Increased the damage to 60/90/120/150/180 from 50/75/100/130/160.
o Reduced the cooldown to 10/9/8/7/6 from 10.
* Idol of Durand
o Fixed a bug where Idol of Durand could break a target's Spell Shield or Banshee's Veil and still taunt them.
* H28-G Evolution Turret - Improved AI against enemy champions
o Enemy champions who attack Heimerdinger near an H28-G turret will now become the focus of that turret.
o UPGRADE!!! will now cause all H28-G turrets to focus enemy champions for the duration.
o Empower now properly procs Rylai's
* Bouncing Blade
o Reduced the cooldown to 9/8.5/8/7.5/7 from 10/9.5/9/8.5/8.
* Killer Instinct
o Reduced the cooldown to 20/18/16/14/12 from 22/20/18/16/14.
* Updated PVP.Net tags and character ratings
* Updated Recommended Items
* Finales Funkeln
o AP ratio increased to .85 from .75
* Ground Slam
o Fixed a bug where Ground Slam would go through spell shields.
* Unstoppable Force
o Fixed a bug where the stun wouldn't last long enough. Unstoppable Force now stuns for 1.5 seconds up from 1 second at all ranks.
* Magic Resistance per Level increased to 1.25 from 0
* Ricochet Shot
o Reduced the damage dealt to the secondary target to 115% from 120.
* Make It Rain
o Reduced the slow duration to 1 second from 1.5 seconds.
* Mace of Spades
o Base damage increased to 80/110/140/170/200, from 20/40/60/80/100
o Now scales off of only bonus Attack Damage, rather than all Attack Damage (so Q doesn't scale with Mordekaiser's level)
o Now deals 75% bonus damage if Mace of Spades only finds 1 target
o Cost reduced to 20/25/30/35/40 from 30/35/40/45/50
o The main target of Mace of Spades now generates shield for Mordekaiser
* Creeping Death
o Increased base damage to 24/38/52/66/80, from 16/32/48/64/80
o Increased AP ratio to 0.2, from 0.15
o Greatly increased missile travel time when casting it on an ally
* Siphon of Destruction
o Damage reduced to 65/105/145/185/225 from 85/110/155/200/245
o AP ratio increased to 0.6 from 0.4
o Base shield generation reduced to 1/2/3/4/5, from 6/9/12/15/18
* Children of the Grave
+ Now steals 24/29/34% of the target's maximum health over the duration, up from 24/28/32%
+ Now deals half damage initially and half damage over time
+ Duration increased to 10 seconds, from 8
+ Total AP ratio over the duration increased to 0.04, from 0.016
+ Fixed a bug where Children of the Grave was improperly blocked by Black Shield
+ The pet now gains 75% of Mordekaiser's Ability Power and Damage at all 3 ranks (from 65/75/85%), and the ratio itself no longer increases with Mordekaiser's AP
+ The pet now gains 15% of Mordekaiser's Health, down from 50%
+ Mordekaiser now gains 20% of the pet's Ability Power, down from 25%
+ Mordekaiser now gains 20% of the pet's Attack Damage, down from 25%
+ Fixed a bug where the pet was not generating shield for Mordekaiser when hitting inhibitors
* Iron Man
o Shield generation increased to 30%, from 25%
o Fixed a tooltip bug (his maximum shield value was always 20 lower than the tooltip showed)
o Fixed bugs where several components of some spells generated shield equal to 20% of the damage dealt instead of 25%
o Fixed bugs where several tooltips did not properly reflect cooldown values with cooldown reduction factored in
o Fixed a bug where occasionally Mordekaiser could generate shield multiple times from a single source of damage (causing a huge spike)
o Reworded/simplified several tooltips
* Defensive Ball Curl
o Reduced the base damage return to 22/28/34/40/46 from 26/32/38/44/50.
o Fixed a bug where the tooltip was not displaying the proper bonus damage return.
* Boomerang Blade
o Boomer Blade now scales with 75% of Sivir's attack damage.
* Increased health per level to 82 from 76.
* Song of Celerity
o Fixed a bug where song of discord was granting more movespeed than intended. (23% decrease)
o Cooldown increased to 170/150/130 from 160/140/120.
* Noxious Trap
o Noxious Traps no longer give any gold as a bounty when killed, down from 25.
o Noxious Traps show their remaining duration when selected.
o Attack speed reduced to 30/40/50/60/70% from 30/45/60/80/100%.
* Tiger Stance
o Fixed some bugs where certain items would have their damage cut down to 1/3. They now deal full damage on Tiger Hit. (Affected items are Madred's Razors, Wriggle's Lantern, Sheen, Lich Bane and Trinity Force)
o Xin'Zhao is now properly considered melee, so he gains full effect from items like Youmuu's Ghostblade and Frozen Mallet.
* Trinity Force stats modified.
o Cost: Unchanged
o +30 Attack Damage (up from 20)
o +30 Ability Power
o +30% Attack Speed (up from 25%)
o +15% Critical Strike (up from 12%)
o +12% Movement Speed
o +250 Mana (down from 300)
o +250 Health (down from 300)
* Exhaust is now properly flagged as a slow + blind.