If a unit is attacked from behind, the attack will deal 150% damage, with a few exceptions:
- Three attacks learned by Assassin do extra Backstab damage: Knife does 175%, Stab does 220%, and Mega Stab does 300%.
- Area attacks, such as Dark Vortex and Pyro Hail do not gain a backstab bonus.
When Backstab damage is dealt, the message '____ deals __ backstab damage!' appears. Even if an attack, like Split Shot, hits two people and does backstab damage to one, the message will still appear.