Kuroki, Thief of Talents is a rare Legendary Creature — Spirit card from Mystery Booster: Commander Edition (MBC), collector number 15.
Menace At the beginning of your end step, target opponent may draw four cards. If they do, look at that player's hand and you may cast a spell from their hand without paying its mana cost. If they don't, put two +1/+1 counters on Kuroki.