Increases weapon damage by 3 for 17 seconds.
- Unlocked at Storm Calling rank 30.
- Update 6: This ability now applies the Major Brutality buff.
- Update 7: Several abilities which have damage, damage shield, or healing components that scale off each other will no longer be hit multiple times by Battle Spirit's reductions. This includes the following abilities: 
- Update 7: Increased the duration of this ability by 50%.
- Update 7: Reduced the cost of this ability by 24%.
- Update 7: The healing from this ability no longer procs off damage over time effects.
- Update 7: Reduced the cooldown on the healing proc to 100 milliseconds from 250 milliseconds.
- Update 9: Abilities that heal based on their damage done (Strife, Puncturing Sweep, Surge, etc.) will now properly calculate their heal values when the damage is fully or partially absorbed.
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