Lumbering Abomination

Emerge {5}{g} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's converted mana cost.)
If you paid Lumbering Abomination for its emerge cost, exile target creature from your graveyard. Lumbering Abomination gets
+X/+Y where X is that creature's power and
Y is that creature's toughness.