Critical Strike

Critical Strike is a passive base ability that gives you a chance on every attack to deal a certain multiplied amount of your original damage. When a Critical Strike occurs, a red number appears above the attacker, and multiplied damage is dealt.
Notes on Critical Strike

* This was a skill of Ladder's Orc Blademaster
* Critical Strike chance is always rounded to the nearest 5%.
* The damage return from Blade Mails (and Anub'Arak's Spiked Carapace) only takes in a percentage of the base damage before critical strikes and before damage reduction.
* Criticals will increase both lifesteal and cleave.
* The red number is the damage before armor reduction.

Stacking Critical Strike

* On the attacks which they occur, Critical strikes and bash will override the Moon Glaives of Luna Moonfang, causing her attack to not bounce.
* Critical Strike is considered a spell on ranged units, as Bash is.
* When stacking with an Arrow Ability:
o If you manually cast most of the Arrow abilities you will never get a crit, as the attack counts as a spell.
o If you auto-cast however:
+ If you acquire the Arrow effect after you have acquired a critical item (acquiring an ability is putting the first level of it, while acquiring an item effect is buying that item) then the critical will never trigger when using the arrow effect.
+ If you acquire the arrow effect before the critical, then first the critical chance is issued, if it does trigger then the arrow effect will have no effect (but it will still drain the mana). In this case, the attack while auto casting Searing Arrows or Frost Arrows will only have the normal damage * critical multiplier applied.
* The damage from two critical strikes will never stack, but the chance to get a critical strike will. Use 1 - ( 1 - A ) * ( 1 - B ) to calculate your chance to critical strike, where A and B are the separate chances to get a critical strike.

Drunken Brawler

The base ability Drunken Brawler is a mixture of the base abilities Critical Strike and Evasion. Its Critical Strike component follows the above rules.
Units that possess this ability

(Note: Abilities based on Drunken Brawler are also listed here.)

* Naga Siren's Critical Strike
* Chaos Knight's Critical Strike
* Bounty Hunter's Jinada
o Based on Drunken Brawler
* Juggernaut's Blade Dance
* Phantom Assassin's Coup de grâce
* Skeleton King's Critical Strike
* Pandaren Brewmaster's Drunken Brawler
o Based on Drunken Brawler

Items that provide this ability

* Crystalys
* Buriza-do Kyanon