Chittering Witch is a rare Creature — Human Warlock card from Throne of Eldraine (ELD), collector number 319. Current market price: $0.50, TCGplayer market prices via Scryfall.
When this creature enters, create a number of 1/1 black Rat creature tokens equal to the number of opponents you have. {1}{B}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.