Ophelia, the Seeker

Flying, Ward {4}
{x}{2}{u}{u}{b}{r}, put this creature from your
graveyard into the battlefield, where {x} is the
number of times this card was put in the battlefield from the graveyard this game. If {x} is {4} or more, you can put it in the battlefield transformed.
{u}{u}{t}, sacrifice this creature, counter
target spell or ability.