Wanda Maximoff

When Wanda Maximoff enters the battlefield,
return target creature to it's owner's hand.
{t}{x}{r}{r}: Take Control of target creature with
CMC X or less until end of turn. Untap it, it
gains haste until end of turn. If X is 5 or more,
then exile Wanda and return her to the
battlefield transformed under her owner's control