Nyarlathotep, Black Pharaoh

Hexproof, indestructible, changeling
(This card is every creature type.)
At the beginning of each player's draw step,
that player draws two additional cards.
Discard a card with converted mana cost X:
Counter target spell with converted mana
cost X. Then, that spell's controller places X
cards from the top of his or her library
into his or her graveyard and loses X life.