Combustion Release: Flame Snake

The user creates a snake like creature from flames that homes in on its target and can either grab hold of them or explode into a large blast of flames. There are ways to avoid them by using an offensive spell against them, forcing two of them hit each other, and making them lose sight of their target completely, as they will either immediately explode afterwards or seek out the closest target in front of them, be it friend or foe.