Yukari, Sage of Gensokyo

Flash
When Yukari, Sage of Gensokyo enters the battlefield, exile target creature spell.
{u/b}: Shuffle, then exile the top card of
your library.
Once each turn you may play a card exiled by
Yukari, Sage of Gensokyo. If you cast a spell
this way, you may spend mana as though it
were mana of any color to cast it, and you
create a 1/1 white Human creature token.