Flare of Malice is a rare Instant card from Modern Horizons 3 (MH3), collector number 331. Current market price: $5.53 (foil $12.39), TCGplayer market prices via Scryfall.
You may sacrifice a nontoken black creature rather than pay this spell's mana cost. Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.