Swarm is League of Legends' newest 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 battle against waves of increasingly dangerous enemies and bosses.

To aid you in the fight against the Primordians, there are a variety of unlockable weapons that deal damage, heal your character, or stun enemies. One of these weapons, called the Radiant Field, allows tanky heroes to dish out some serious AoE fire damage.

Here's everything you need to know about how to get the Radiant Field in League's Swarm mode.

When you play your first game of Swarm, you’ll need to unlock the Radiant Field before you can use it. Luckily for gamers, this weapon is unlocked on the first level as long as you activate the healing fountain four times.