Final answer:
Brimstone's 'Incendiary' is a grenade ability in Valorant that explodes into a fire, used for area denial and damaging enemies over time.
Step-by-step explanation:
The ability "Incendiary" in the video game context refers to Brimstone's grenade from the game Valorant. When used, Brimstone can deploy a grenade that explodes into a pool of fire, causing damage over time to players within its radius. This ability is strategic for area denial, forcing enemies to reposition or take significant damage if they remain in the affected area. It's commonly utilized to clear out entrenched enemies or to discourage players from pushing through a choke point.