Anointed Gravedigger

Skulk
When Anointed Gravedigger deals combat damage to a player, each player puts that many cards from the top of his or her library into his or her graveyard.
{w}{g}, exile target creature card from a graveyard: Put X +1/+1 counters on Anointed Gravedigger and you gain X life, where X is the exiled creature's toughness.