Astonishing Discovery

Whenever Astonishing Recovery enters the battlefield, draw two cards, then exile two cards
from your hand or graveyard.
{1}{r}{w}{u}: Exile Astonishing Recovery, then
return it to the battlefield at the end of your
next turn.
You may play cards exiled with Astonishing
Discovery, and you may pay mana as thought
it were mana of any color to cast those spells.