Chaos (Final Fantasy)

Chaos is the final boss of the original Final Fantasy game. He is an incarnation of Garland occuring 2,000 years prior to the majority of the plot of Final Fantasy. The Warriors of Light travel to the past and discover Garland there. He transforms into Chaos and attacks, but is ultimately defeated.

In Battle
Chaos is very powerful. He possesses the ability to completely heal himself at any time, as well as a move which can potentially Instant Death the entire party unless they are wearing the appropriate accessory.