Esai, Sharad's Challenger

Indestructible, Trample, Reach
Whenever Esai, Sharad's Challenger deals combat damage to a player, that player puts that many
cards from the top of his or her library into his or
her graveyard. You may cast a nonland card
among those cards without paying its mana cost
until end of turn.
"He has awoken."
- Nephyt