Swarm

Swarm is a grenade skill which summons friendly pink biter worms to attack enemies.

Trivia

 * In earlier versions of the game biters would attack golden doors which resulted in the player getting cursed.
 * Before v2.1, Swarm scaled with Survival and Brutality, spawned 4 biters instead of 8, and had a cooldown of 0.5 seconds instead of 10.
 * The pre v2.1 Swarm had the shortest cooldown of all skills.