A fire beam that scorches everything in its path for as long as it fires. Firebeam is the Pyro school's sustained-damage option - not a burst like Fireball but a prolonged channel that deals continuous damage across whatever you point it at. Against high-HP targets or tight groups, it tends to outperform single-hit spells.
Strategy
Hold it on a single high-priority target or sweep it slowly across a dense group. Firebeam reliably applies Burning to everything it touches, which makes it excellent prep for a Surcharge follow-up. In narrow corridors where enemies bunch together the beam can hit three or four targets simultaneously.
Strengths
Continuous damage output against stationary or slow targets
Reliable Burning application for Surcharge setup
Effective at clearing corridors full of enemies
Weaknesses
Channeled - you can't dodge while firing
Mobile or erratic enemies make it harder to maintain the beam
