Karthos, Unexpected Ally

When Karthos, Unexpected Ally enters the battlefield, return target creature from your graveyard to the battlefield. If it is a non-dragon creature, sacrifice it at the end of turn.
{2}{p/b}{p/b}: Transform Karthos, Unexpected Ally. Activate only as a sorcery. ({p/b} can be paid with
either {b} or 2 life.)
"dominate the heard, dominate the untamed"
- Sheoldred