Acquisitive Exhumer

Deathtouch
Whenever Acquisitive Exhumer deals combat
damage to a player, return target entombed
card to its owner's hand.
{w/b}{w/b}{b}{b}, Sacrifice Acquisitive Exhumer:
Return up to X target entombed cards to their
owners' hands, where X is the greatest amount
of life an opponent has lost this turn.