The genius of Germany, Killjoy effortlessly secures key battlefield positions with her arsenal of inventions. If their damage doesn't take her enemies out, the debuff her robots provide will make short work of them.
EQUIP a Nanoswarm grenade. FIRE to throw the grenade. Upon landing, the Nanoswarm goes covert. ALT FIRE to lob. ACTIVATE the Nanoswarm to deploy a damaging swarm of nanobots.