Bite of the Black Rose is a uncommon Sorcery card from Conspiracy (CNS), collector number 26. Current market price: $0.49 (foil $6.44), TCGplayer market prices via Scryfall.
Will of the council — Starting with you, each player votes for sickness or psychosis. If sickness gets more votes, creatures your opponents control get -2/-2 until end of turn. If psychosis gets more votes or the vote is tied, each opponent discards two cards.