N'Kari, Arch-Tempter

Whenever a demon you control or whenever a creature that you control but don't own deals combat damage to an opponent, put a temptation counter on target creature that player controls.
{r}{r}: Goad target creature with a temptation counter on it.
{p/b}{p/b}{b}: Gain control of target creature with a temptation counter on it until the end of your next turn. Remove a temptation counter from this creature.