Willing unto Death

Enchant Creature
At the beginning of enchanted creature's owner's
turn, they sacrifice a creature, lose life equal to
that creature's power, and draw a card.
Know then this, your desire burns, and penumbral
reason shifts in time with the licking flicker of its
flames. Yet what does one burn for? Do you not know
the purpose of an altar? Do you not know that hunger
calls to that which it believes will sate it?
- Denunciation of reason, Second inquiry