Sybill Trelawney

Unblockable, deathtouch
Whenever Sybill Trelawney deals combat damage
to a player, look at the top three cards of that
player's library, exile one of them face down,
then put the rest into their graveyard. You may
look at and cast that card for as long as it remains exiled, and you may spend mana as though it
were mana of any type to cast that spell.
"How nice to see you in the physical world at last."
- Sybill Trelawney