Magma Burst is a common Instant card from Planeshift (PLS), collector number 66. Current market price: $0.19 (foil $0.51), TCGplayer market prices via Scryfall.
Kicker—Sacrifice two lands. (You may sacrifice two lands in addition to any other costs as you cast this spell.) Magma Burst deals 3 damage to any target. If this spell was kicked, it deals 3 damage to another target.