Dismantling Blow is a uncommon Instant card from Modern Horizons (MH1), collector number 5. Current market price: $0.24 (foil $0.29), TCGplayer market prices via Scryfall.
Kicker {2}{U} (You may pay an additional {2}{U} as you cast this spell.) Destroy target artifact or enchantment. If this spell was kicked, draw two cards.