Star Trek

Legendary Creature — Klingon Warrior Officer

{1}, Sacrifice a creature: Put a +1/+1 counter on each Klingon you control.

General Chang, Cold Warrior

Reality Fracture

Aerid Konstrari

Heartwood

Legendary Creature — Elder Sphinx

Flying
When Aerid Konstrari enters or dies, create a Heartwood token. (It's a red and green artifact with "{T}: Add {R} or {G}.")
{6}: Create a Heartwood token. Then Aerid Konstrari gets +X/+0 until end of turn, where X is the number of artifacts you control.

Marvel Super Heroes

Legendary Creature — Human Hero Villain

When White Widow enters, choose one —
• Put a +1/+1 counter on each of up to two target creatures.
• Return target artifact or enchantment card from your graveyard to your hand.

White Widow, Free Agent

Marvel Super Heroes Commander

Legendary Creature — Mutant Hero

At the beginning of combat on your turn, if you've cast a noncreature spell this turn, discover 6. (Exile cards from the top of your library until you exile a nonland card with mana value 6 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Franklin Richards, Ascendant

Legendary Artifact Creature — Human Hero

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Flying
Noncreature spells you cast have improvise.

Ironheart, Clever Champion

Legendary Creature — Gamma Hero

Trample
Other Heroes you control have trample.
Whenever a Hero you control becomes blocked, put a +1/+1 counter on that Hero for each creature blocking it.

She-Hulk, Wallbreaker

Legendary Creature — Human Detective Hero

{T}, Put a stun counter on Jessica Jones: Exile the top X cards of your library, where X is Jessica Jones's power. You may play those cards this turn. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Jessica Jones, Private Eye

Legendary Creature — God Sorcerer Villain

{1}, {T}: When you next cast an instant or sorcery spell with mana value less than or equal to Loki's power this turn, copy that spell. You may choose new targets for the copy.
Power-up — {4}{R}: Put two +1/+1 counters on Loki. (Activate each power-up ability only once. Reduce the cost by his mana cost if he entered this turn.)

Loki Laufeyson

Sturdy Shield

Legendary Creature — Human Soldier Hero

When U.S.Agent enters, create a colorless Equipment artifact token named Sturdy Shield with "Equipped creature gets +1/+2" and equip {2}. Attach it to U.S.Agent.

U.S.Agent, John Walker

Legendary Creature — Mutant Warlock Hero

Instant and sorcery spells you cast with mana value 4 or greater cost {X} less to cast, where X is The Scarlet Witch's power.

The Scarlet Witch

Sorcery

Target creature you control gets +X/+0 until end of turn. Then it deals damage equal to its power to up to one other target creature.

Bionic Blow

Flash
Flying
When Rescue enters, return up to one other target artifact or creature you control to its owner's hand. If it was an artifact, put a +1/+1 counter on Rescue.

Rescue, Pepper Potts

Legendary Creature — Human Assassin Hero

Black Widow, Natasha Romanoff

Card

Germination Practicum

Secrets of Strixhaven Art Series

Secrets of Strixhaven

Sorcery — Lesson

Put two +1/+1 counters on each creature you control.
Paradigm (Then exile this spell. After you first resolve a spell with this name, you may cast a copy of it from exile without paying its mana cost at the beginning of each of your first main phases.)

Legendary Creature — Pest

Whenever you gain life, put a +1/+1 counter on each Pest, Bat, Insect, Snake, and Spider you control.

Blech, Loafing Pest

Final Fantasy Promos

Legendary Creature — Human Warrior

Ward—Pay life equal to Raubahn's power.
Whenever Raubahn attacks, attach up to one target Equipment you control to target attacking creature.

Raubahn, Bull of Ala Mhigo

Final Fantasy Commander

Enchantment

Creatures your opponents control enter tapped.
Whenever a creature an opponent controls enters, you gain 1 life.

Authority of the Consuls

Desmond Miles

Assassin's Creed Art Series

Assassin's Creed

Legendary Creature — Human Assassin

Menace
Desmond Miles gets +1/+0 for each other Assassin you control and each Assassin card in your graveyard.
Whenever Desmond Miles deals combat damage to a player, surveil X, where X is the amount of damage it dealt to that player.

Ezio, Blade of Vengeance

Choose one or both —
• Return target creature to its owner's hand.
• Target player searches their library and/or graveyard for a card named Ezio, Blade of Vengeance, reveals it, and puts it into their hand. If they search their library this way, they shuffle.