Pillar Tombs of Aku{2}{B}{B}
World Enchantment
At the beginning of each player's upkeep, that player may sacrifice a creature. If that player doesn't, they lose 5 life and you sacrifice Pillar Tombs of Aku.
"Aku, City of Hidden Graves / Aku, City of Lost Kings / Aku, welcome me."
—Pillar tomb inscription
Artist: Terese Nielsen