From Guild Wars 2 Wiki
— In-game description [?]
- There is a 25% chance that your character will rally and lose the effect when killing a foe while in Vengeance.
- Some things you can rally off of in downed state cannot be rallied off of during Vengeance (ex. weak spawned minions, turrets, target-able environmental objects).[verification requested]
- Cannot contest points in sPvP or WvW while under its effect.
- A Guild Wars skill bears the same name as this skill.