Mokthril, Ravnica's Bane

{b}{b}{t}: Return target creature card from your graveyard to the battlefield
{r}{r}{t}: Target opponent takes damage equal to the number of creatures you control
{w}{w}{t}: Target creature gains lifelink and vigilance until the end of the turn
{u}{u}{t}: Permanently take control of target creature, scry 3
{g}{g}{t}: Give target creature +5/+5 until the end of the turn.