Volcanic Offering is a rare Instant card from Commander Anthology Volume II (CM2), collector number 126. Current market price: $2.70, TCGplayer market prices via Scryfall.
Destroy target nonbasic land you don't control and target nonbasic land of an opponent's choice you don't control. Volcanic Offering deals 7 damage to target creature you don't control and 7 damage to target creature of an opponent's choice you don't control.