Avatar: The Last Airbender Promos

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.

Wartime Protestors

Avatar: The Last Airbender

Creature — Human Soldier Ally

{5}: Creatures you control get +1/+1 until end of turn.

Water Tribe Captain

Card

Peerless Samurai

Neon Dynasty Art Series

Kamigawa: Neon Dynasty

Creature — Human Samurai

Menace (This creature can't be blocked except by two or more creatures.)
Whenever a Samurai or Warrior you control attacks alone, the next spell you cast this turn costs {1} less to cast.

Secret Lair Drop

Instant

Exile target nonland permanent. You lose 3 life.

Anguished Unmaking

Destroy target artifact or creature. It can't be regenerated.

Putrefy

Junk

Destroy target artifact or enchantment. Create a Junk token. (It's an artifact with "{T}, Sacrifice this token: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")