マイティストライク [mighty strike] in Japanese.
Final Fantasy XI
Type: Special Ability
Learn at: WAR1, Use: WAR
Cast Time: instant, Recast: 1 hour, Duration: 45 s
Range: self, Radius: self, Cumulative Enmity: 1, Volatile Enmity: 300
Description: Turns all melee attacks into critical hits.
Other: can be modified by Warrior's Mufflers +2
Final Fantasy XIV

Type: Warrior Ability
Learn at: WAR50 (quest), Equip: WAR
Target: self, Recast: 900 s, Duration: ?
Description: Guarantees all attacks made with axes will be critical hits
Dissidia NT
Type: EX Skill (General)
Obtain: Player Level 1
Target: self+party, Range: 2 m, Recast: 60 s, Duration: 15 s
Effect: Doubles damage for the duration
Category: Ability