Draktha

Draktha was a manipulative green-skinned planeswalker mage who practiced black magic.

Mezlok's Challenge
Draktha was the duelist for the town of Thorun on Mirrankkar for many years. His victories in the annual contest were profitable for the chiefdom, eventually making it the largest city on the planet. Afraid that the king was taking him for granted, he demanded the promise of the king's next child as payment for the upcoming contest. The king refused, and Draktha urged him to rethink or rot before planeswalking away.