Uznac, Corpse Gourmet

{g}, {t}: Exile target creature card from a graveyard. Draw a card, then put a +1/+1 counter on Uznac, Corpse Gourmet.
{3}{u}, {t}: Each players mills X cards, where
X is the number of +1/+1 counters on
Uznac, Corpse Gourmet.