FOILCheapest priced copy (Avatar: The Last Airbender): $1.49 at Card Kingdom, near mint, their price list as of .
Firebender Ascension 
Enchantment · Rare · Avatar: The Last Airbender Promos · #137s
When this enchantment enters, create a 2/2 red Soldier creature token with firebending 1.
Whenever a creature you control attacking causes a triggered ability of that creature to trigger, put a quest counter on this enchantment. Then if it has four or more quest counters on it, you may copy that ability. You may choose new targets for the copy.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
3 printings · $1.49 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender Promos | 137s | Rare | — | $9.99 |
| Avatar: The Last Airbender | 137 | Rare | $1.49 | $1.99 |
| Avatar: The Last Airbender | 312 | Rare | $2.99 | $2.99 |
9 rulings from Wizards of the Coast
- 2 October 2025Mana from firebending abilities isn't lost until you leave combat and go to your second main phase. It can be used at any time during combat, even after combat damage has been dealt.
- 2 October 2025Triggered abilities use the words "when," "whenever," or "at." They're often written as "[Trigger condition], [effect]."
- 2 October 2025Multiple instances of firebending on the same creature trigger separately, each granting you the appropriate amount of mana.
- 2 October 2025Firebending abilities aren't mana abilities. They use the stack and can be responded to.
- 2 October 2025"Firebending N" is a keyword that represents the ability "Whenever this creature attacks, add N {R}. Until end of combat, you don't lose this mana as steps end."
- 2 October 2025If the ability is modal (that is, it has a bulleted list of choices), the copy will have the same mode(s). You can't choose new ones.
- 2 October 2025Any other mana you add during combat will still be lost as normal when moving between steps of combat.
- 2 October 2025The copy will have the same targets as the ability it's copying unless you choose new ones. You may change any number of the targets, including all of them or none of them. If, for one of the targets, you can't choose a new legal target, then it remains unchanged (even if the current target is illegal).
- 2 October 2025Firebender Ascension's ability will always go on the stack on top of the triggered ability that caused it to trigger. The copy it creates will be created on the stack on top of the original triggered ability and the copy will resolve before that ability.