Numhatni, Willfully Malicious

When Numhatni, Willfully Malicious enters the battlefield or is turned face up, discard a card. If you can't, draw four cards.
When Numhatni, Willfully Malicious dies, discard your hand, then you may return it
to the battlefield face down. If you don't, draw that many cards.
Morph {b}{u}{g}