Burst Lightning is a common Instant card from Modern Masters 2015 (MM2), collector number 109. Current market price: $0.22 (foil $0.35), 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.