Fractured Sanity is a rare Sorcery card from Modern Horizons 2 (MH2), collector number 336. Current market price: $2.27 (foil $5.31), TCGplayer market prices via Scryfall.
Each opponent mills fourteen cards. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle this card, each opponent mills four cards.