Burst Lightning is a common Instant card from Foundations (FDN), collector number 192. Current market price: $0.22 (foil $0.27), TCGplayer market prices via Scryfall.
Kicker {4} (You may pay an additional {4} as you cast this spell.) Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.