Avatar: The Last Airbender Eternal

Creature — Elk Dog

First strike (This creature deals combat damage before creatures without first strike.)

Deer-Dog

Instant

Target creature gets +1/+3 and gains flying until end of turn. Untap it.

Acrobatic Leap

Creature — Sloth Beast

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Aardvark Sloth

Murders at Karlov Manor

Creature — Unicorn

Whenever another creature you control with power 2 or less enters, target creature you control gets +1/+1 until end of turn.

Neighborhood Guardian

A Mysterious Creature

Etrata, Deadly Fugitive

Legendary Creature — Vampire Assassin

Deathtouch
Face-down creatures you control have "{2}{U}{B}: Turn this creature face up. If you can't, exile it, then you may cast the exiled card without paying its mana cost."
Whenever an Assassin you control deals combat damage to an opponent, cloak the top card of that player's library.

Legendary Creature — Dryad

{1}{G}: Target creature gains deathtouch until end of turn.
{G/W}: Target creature gains vigilance until end of turn.
{2}{W}: Target creature gains double strike until end of turn.