Incentas

Incentas was a boss in the game Mega Man X: Command Mission. He was able to switch elemtal properties when the situation called for it.

X and his allies went to his mine looking for Supra Force Metal. It was actually a trap. Once they reached the lab, Incentas barred the door behind them, trapping them inside. After a strenuous fight, Incentas set off the selfdestruct mechanism for the lab. He was about to teleport out when Spider tackled him from the side. Pushing him into the door, Spider seemingly "sacrificed" himself so X could escape. Incentas was obliterated in the resulting explosion.