Swarm is League of Legends’ latest limited-time game mode, set in the Anima Squad universe. In this mode, you and three other players can select a limited roster of characters to fight against waves of increasingly dangerous enemies and bosses.

To assist you in the battle against Primordians, there’s a myriad of unlockable weapons that deal damage, heal your character, or stun enemies. One of these weapons, named the Radiant Field, allows tanky heroes to dish out some serious AoE burn damage.