Hidden Tyrant

{b}: Hidden Tyrant gets +1/-1 until end of turn.
{u}: Hidden Tyrant gains flying until end of turn.
You may reveal this card from your opening
hand. If you do, exile it with four sleep counters
on it.
Whenever you cast an instant or sorcery spell,
remove a sleep counter from Hidden Tyrant.
When the last is removed, put it on the
battlefield tapped.