Rush of Dread is a rare Sorcery card from Outlaws of Thunder Junction Promos (POTJ), collector number 104p. Current market price: $0.79 (foil $0.68), TCGplayer market prices via Scryfall.
Spree (Choose one or more additional costs.) + {1} — Target opponent sacrifices half the creatures they control of their choice, rounded up. + {2} — Target opponent discards half the cards in their hand, rounded up. + {2} — Target opponent loses half their life, rounded up.