Bat'Zul the Imprisoned
From Paragon Wiki
A demon-lord of the lowest planes of existence, Bat'Zul's immense power has been shackled beneath Cap au Diable for hundreds of years. Should he escape, he could turn all of the Rogue Isles into an inferno of destruction.
- Bat'Zul the Imprisoned's Bat'Zul profile for a list of his powers