Casualties of War is a rare Sorcery card from War of the Spark Promos (PWAR), collector number 187p. Current market price: $0.91 (foil $1.21), TCGplayer market prices via Scryfall.
Choose one or more — • Destroy target artifact. • Destroy target creature. • Destroy target enchantment. • Destroy target land. • Destroy target planeswalker.