Emergency Powers is a mythic Instant card from Ravnica Allegiance Promos (PRNA), collector number 169s. Current market price: — (foil $1.71), TCGplayer market prices via Scryfall.
Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Emergency Powers. Addendum — If you cast this spell during your main phase, you may put a permanent card with mana value 7 or less from your hand onto the battlefield.