Elena, Magician Supreme

Flying
Whenever a player would draw a card, each
player exiles a card from the top card of their
library instead. The player to the right of each
player may play the card from the player to the
left's exile for as long as the card is in exile.
{t}: Draw three cards. You may pay {u}{b}{r}.
If you do, you may cast a spell from exile
without paying it's mana cost.