After you kill a Mutation, the next time you damage a Mutation is guaranteed to cause them to Stumble.
Team effects
+5%Stumble Damage
Confident killer
offense
When you or your team kills a Mutation gain 1% damage (up to 15%) until the end of the level.
Fill 'em full of lead
talent
While shooting, gain 1% Damage, 1% Fire Rate, and 5% Swap Speed every 0.25 seconds. Max count of buffs is 20.
Belligerent
talent
Gain a stacking 4% increase to Damage each time a Horde is called up to 6 stacks (30-second cooldown between Hordes). Stacks are reset when a Cleaner is incapped or killed.