Firebending Lesson is a common Instant — Lesson card from Avatar: The Last Airbender (TLA), collector number 138. Current market price: $0.13 (foil $0.28), TCGplayer market prices via Scryfall.
Kicker {4} (You may pay an additional {4} as you cast this spell.) Firebending Lesson deals 2 damage to target creature. If this spell was kicked, it deals 5 damage to that creature instead.