Avatar: The Last Airbender

Creature — Human Soldier Ally

Waterbend {5}: Look at the top four cards of your library. You may reveal a creature card with power 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}.)

Water Tribe Rallier

Avatar: The Last Airbender Promos

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.)

Earthen Ally

Creature — Human Peasant Ally

{2}{B}: Return this card from your graveyard to your hand.

Merchant of Many Hats

Avatar: The Last Airbender Eternal

Sorcery — Lesson

You may cast this spell as though it had flash if you control an attacking legendary creature.
Target opponent sacrifices a creature of their choice, discards a card, and loses 3 life.

Scarring Memories

Reach, deathtouch
When this creature dies, if there's a Lesson card in your graveyard, you gain 2 life.

Walltop Sentries

Creature — Human Soldier

Haste (This creature can attack and {T} as soon as it comes under your control.)

Fire Nation Soldier

Ally

Creature — Human Warrior Ally

Firebending X, where X is the number of creatures you control. (Whenever this creature attacks, add X {R}. This mana lasts until end of combat.)
{5}: Create a 1/1 white Ally creature token.

Sun Warriors

Modern Horizons 3 Commander

Servo

Cayth, Famed Mechanist

Legendary Creature — Dwarf Artificer

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)
Other nontoken creatures you control have fabricate 1.
{2}, {T}: Choose one —
• Populate.
• Proliferate.

Disa the Restless

Tarmogoyf

Legendary Creature — Human Scout

Whenever a Lhurgoyf permanent card is put into your graveyard from anywhere other than the battlefield, put it onto the battlefield.
Whenever one or more creatures you control deal combat damage to a player, create a Tarmogoyf token.

Commander Masters

Legendary Creature — Merfolk Druid

Landfall — Whenever a land you control enters, you gain 1 life and draw a card.