Giratina the Chaotic

Flying, vigilance, indestructible
Whenever Giratina the Chaotic enters the battlefield or attacks, you may discard a card. If
you do, create X 1/1 minion creature tokens with shadow, where X is equal to the discarded cards converted mana cost.
{b}{b}{b}, {t}: Put target creature card from a
graveyard onto the battlefield under your control.
When dimensions collapse, chaos is all that remains