Grief is a mythic Creature — Elemental Incarnation card from Modern Horizons 2 Timeshifts (H2R), collector number 7. Current market price: $4.16 (foil $6.54), TCGplayer market prices via Scryfall.
Menace When this creature enters, target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Evoke—Exile a black card from your hand.