H’thr Pratt, Pet of the thulhu

Bloody Devotion - At the beginning of your end step, for every life you lost this turn, exile the top card of your library. Then return half of those cards, round down, to the battlefield face down as 0/1 colorless Horror creature tokens, and put that many -1/-1 counters on H’thr Pratt.

Squamous - Dragon, Lizard, Snake, and Naga creatures you control get +1/+1.

Devolution - Remove a counter from Heather, {t}: Until end of turn, you may treat all face down Horror