Fated Firepower is a mythic Enchantment card from Avatar: The Last Airbender (TLA), collector number 341. Current market price: $15.32 (foil $18.69), TCGplayer market prices via Scryfall.
Flash This enchantment enters with X fire counters on it. If a source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus an amount of damage equal to the number of fire counters on this enchantment instead.