Dark Prince Slaanesh

When Slaanesh enters the battlefield, tap all
other creatures, then gain control of target
creature an opponent controls.
Deathtouch, Lifelink, Hexproof, Hexeater
(Whenever an instant or sorcery target this spell,
counter it.)
{x}{b}{b}, {t}: gain control of target creature. X is
equal to the converted mana cost of the creature.