Eternity Blaze

At the beginning of your upkeep, if Eternity
Blaze is in your graveyard, return it to the battlefield and you lose half your life, rounded
down.
{x}{b}{r}: Eternity Blaze deals X damage to each creature, planeswalker, and player.
Burned so deeply and for so long that only that fact,
the persistence of that fire, remains.