Monster of the Loch

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until the end of turn)
Whenever Monster of the Loch deals combat
damage to a player, that player puts that many
cards from the top of his or her library into their graveyard.
{4}{b}{g}{u},{t}: Your life total becomes the amount
of cards in target player's graveyard.