Kuro, Pitlord{6}{B}{B}{B}
Legendary Creature — Demon Spirit
At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay {B}{B}{B}{B}.
Pay 1 life: Target creature gets -1/-1 until end of turn.
Pay 1 life: Target creature gets -1/-1 until end of turn.
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Artist: Jon Foster