Aria of Flame is a rare Enchantment card from Modern Horizons (MH1), collector number 118. Current market price: $0.63 (foil $2.08), TCGplayer market prices via Scryfall.
When this enchantment enters, each opponent gains 10 life. Whenever you cast an instant or sorcery spell, put a verse counter on this enchantment, then it deals damage equal to the number of verse counters on it to target player or planeswalker.