
At the beginning of your upkeep, sacrifice Kuro unless you pay {B}{B}{B}{B}.
Pay 1 life: Target creature gets -1/-1 until end of turn.
Kuro, Pitlord has 4 printings, first in Champions of Kamigawa (2004). EDHREC ranks it #17,740 among Commander cards. It appears most in Iname, Death Aspect decks (628 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.