Avatar: The Last Airbender

Boiling Rock Rioter | Creature | Human Rogue Ally | Firebending 1 (Whenever this creature attacks, add {R}. This mana lasts until end of combat.) Tap an untapped Ally you control: Exile target card from a graveyard. Whenever this creature attacks, you may cast an Ally spell from among cards you own exiled with this creature. | Airi Yoshihisa

Firebender Ascension | Enchantment | | 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. | Tetsuko

Firebending Student | Creature | Human Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Firebending X, where X is this creature's power. (Whenever this creature attacks, add X {R}. This mana lasts until end of combat.) | Kozato

The Last Agni Kai | Instant | | Target creature you control fights target creature an opponent controls. If the creature the opponent controls is dealt excess damage this way, add that much {R}. Until end of turn, you don't lose unspent red mana as steps and phases end. | Pablo Rivera

Ran and Shaw | Legendary Creature | Dragon | Flying, firebending 2 When Ran and Shaw enter, if you cast them and there are three or more Dragon and/or Lesson cards in your graveyard, create a token that's a copy of Ran and Shaw, except it's not legendary. {3}{R}: Dragons you control get +2/+0 until end of turn. | Miho Midorikawa

Redirect Lightning | Instant | Lesson | As an additional cost to cast this spell, pay 5 life or pay {2}. Change the target of target spell or ability with a single target. | Toni Infante

Wartime Protestors | Creature | Human Rebel Ally | Haste Whenever another Ally you control enters, put a +1/+1 counter on that creature and it gains haste until end of turn. | Yosuke Adachi

Zhao, the Moon Slayer | Legendary Creature | Human Soldier | Menace Nonbasic lands enter tapped. {7}: Put a conqueror counter on Zhao. As long as Zhao has a conqueror counter on him, nonbasic lands are Mountains. (They lose all other land types and abilities and have "{T}: Add {R}.") | Toraji

Earthen Ally | Creature | Human Soldier Ally | This creature gets +1/+0 for each color among Allies you control. {2}{W}{U}{B}{R}{G}: Earthbend 5. (Target land you control becomes a 0/0 creature with haste that's still a land. Put five +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.) | Boell Oyino

Iroh, Tea Master | Legendary Creature | Human Citizen Ally | When Iroh enters, create a Food token. At the beginning of combat on your turn, you may have target opponent gain control of target permanent you control. When you do, create a 1/1 white Ally creature token. Put a +1/+1 counter on that token for each permanent you own that your opponents control. | Brian Yuen

Azula, Cunning Usurper | Legendary Creature | Human Noble Rogue | Firebending 2 (Whenever this creature attacks, add {R}{R}. This mana lasts until end of combat.) When Azula enters, target opponent exiles a nontoken creature they control, then they exile a nonland card from their graveyard. During your turn, you may cast cards exiled with Azula and you may cast them as though they had flash. Mana of any type can be spent to cast those spells. | Evyn Fong

Sokka, Bold Boomeranger | Legendary Creature | Human Warrior Ally | When Sokka enters, discard up to two cards, then draw that many cards. Whenever you cast an artifact or Lesson spell, put a +1/+1 counter on Sokka. | Toni Infante

Zuko, Conflicted | Legendary Creature | Human Rogue | At the beginning of your first main phase, choose one that hasn't been chosen and you lose 2 life — • Draw a card. • Put a +1/+1 counter on Zuko. • Add {R}. • Exile Zuko, then return him to the battlefield under an opponent's control. | Halil Ural

Toph, Hardheaded Teacher | Legendary Creature | Human Warrior Ally | When Toph enters, you may discard a card. If you do, return target instant or sorcery card from your graveyard to your hand. Whenever you cast a spell, earthbend 1. If that spell is a Lesson, put an additional +1/+1 counter on that land. (Target land you control becomes a 0/0 creature with haste that's still a land. Put a +1/+1 counter on it. When it dies or is exiled, return it to the battlefield tapped.) | Ruwen Liu

Sokka, Tenacious Tactician | Legendary Creature | Human Warrior Ally | Menace, prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Other Allies you control have menace and prowess. Whenever you cast a noncreature spell, create a 1/1 white Ally creature token. | Robin Har

Fire Lord Zuko | Legendary Creature | Human Noble Ally | Firebending X, where X is Fire Lord Zuko's power. (Whenever this creature attacks, add X {R}. This mana lasts until end of combat.) Whenever you cast a spell from exile and whenever a permanent you control enters from exile, put a +1/+1 counter on each creature you control. | Jo Cordisco

Toph, the First Metalbender | Legendary Creature | Human Warrior Ally | Nontoken artifacts you control are lands in addition to their other types. (They don't gain the ability to {T} for mana.) At the beginning of your end step, earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.) | Eilene Cherie

Fire Lord Azula | Legendary Creature | Human Noble | Firebending 2 (Whenever this creature attacks, add {R}{R}. This mana lasts until end of combat.) Whenever you cast a spell while Fire Lord Azula is attacking, copy that spell. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.) | Fahmi Fauzi

Iroh, Grand Lotus | Legendary Creature | Human Noble Ally | Firebending 2 During your turn, each non-Lesson instant and sorcery card in your graveyard has flashback. The flashback cost is equal to that card's mana cost. (You may cast a card from your graveyard for its flashback cost. Then exile it.) During your turn, each Lesson card in your graveyard has flashback {1}. | Fahmi Fauzi

Fire Nation Palace | Land | | This land enters tapped unless you control a basic land. {T}: Add {R}. {1}{R}, {T}: Target creature you control gains firebending 4 until end of turn. (Whenever it attacks, add {R}{R}{R}{R}. This mana lasts until end of combat.) | Awanqi (Angela Wang)