Oni mage

Oni mages, often mistakenly called ogre mages, are powerful, intelligent and cunning oni that possess several potent abilities.

Physical description
They often stood 10 ft (3 m) tall and could weigh 700 lb (320 kg). They typically led oni and other large creatures, both as a mastermind and as a war leader; their abilities worked best with allies. Oni mages were versatile giants that combined physical and magical prowess in combat, using their prodigious strength to deal out significant amounts of damage while relying on their regeneration ability to shrug off wounds. When found in real danger though, they could duck out quickly using darkness, invisibility, gaseous form, or even their ability of flight.

Extra
The oni were a race of spellcasting giants. They were humanoid but often had features that set them apart from normal giants. These could include large horns, extra or missing fingers, a third eye and skin colors that ranged from red to blue. Given their intelligence and their magical powers, oni preferred to dress as nobility, wearing fine clothing and armor. Despite their intelligence, oni were known to be brutish and wicked. They delighted in the suffering of others. They often stole what they wanted from surrounding communities, be it property or persons (young maidens were their favorite).

Notable Ogre Mages
A mated pair of ogre mages, Sythillis and Cyrvisnea, ruled the Sythillisian Empire from the Small Teeth mountain range.