Chandra's Incinerator is a rare Creature — Elemental card from Core Set 2021 Promos (PM21), collector number 136p. Current market price: $4.50 (foil $4.42), TCGplayer market prices via Scryfall.
This spell costs {X} less to cast, where X is the total amount of noncombat damage dealt to your opponents this turn. Trample Whenever a source you control deals noncombat damage to an opponent, this creature deals that much damage to target creature or planeswalker that player controls.