Dravos, Right Hand of Yawgmoth

{p/c}{p/c}{p/c}{t}: Exile target creature card from each opponent's graveyard. Dravos, Right Hand of Yawgmoth gains power and toughness equal
to the total amount of power and toughness amongst creatures exiled this way.
At the start of combat if Dravos, Right Hand
of Yawgmoth has a power of ten or higher untap it.