Reality Fracture

Jace

Creature — Horror

When this creature enters, empower Jace 1.
Planeswalkers you control aren't put into their owners' graveyards for having 0 loyalty.
Planeswalkers you control have "[+2]: This planeswalker deals 1 damage to each opponent and you gain 1 life."

Sanctum Lurker

Marvel Super Heroes

Clue

Legendary Creature — Human Spy Hero

Whenever a creature you control attacks alone, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Agent 13, Sharon Carter

Artifact Creature — Robot Villain

Flying
Power-up — {5}{U}: Put three +1/+1 counters on this creature. (Activate each power-up ability only once. Reduce the cost by its mana cost if it entered this turn.)

Aerial Doombot

Marvel Super Heroes Jumpstart Front Cards

Card

Speedy

Legendary Creature — Mutant Hero

If Quicksilver, Brash Blur is in your opening hand, you may begin the game with him on the battlefield.
Haste
Power-up — {4}{R}: Put a +1/+1 counter and a double strike counter on Quicksilver. (Activate each power-up ability only once. Reduce the cost by his mana cost if he entered this turn.)

Quicksilver, Brash Blur

Marvel Super Heroes Commander

Sorcery

Target player draws two cards.
Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Deep Analysis

Untap target creature. After this main phase, there is an additional combat phase followed by an additional main phase.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Seize the Day

Legendary Creature — Human Hero Villain

Deathtouch
Whenever a creature you control attacks alone, it gains first strike and menace until end of turn. (It can't be blocked except by two or more creatures.)

Black Widow, Double Agent

Exile all creatures. Each player may put any number of creature cards from their hand onto the battlefield. Then put all cards exiled this way into their owners' hands. Exile Worlds Within Worlds.

Worlds Within Worlds

Whenever a creature you control attacks alone, it gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Peggy Carter, Secret Agent

First strike
Whenever a creature you control attacks alone, draw a card. Then you may put a creature card with mana value 3 or less from your hand onto the battlefield. It enters tapped and attacking and gains indestructible until end of turn.

Nick Fury, Spymaster

Legendary Creature — Human Hero

Ant-Man, Scott Lang

Secrets of Strixhaven

Sorcery — Lesson

Target player draws two cards and loses 2 life.
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.)

Decorum Dissertation

Creature — Fractal Crab

Whenever you cast a spell with {X} in its mana cost, look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

Geometer's Arthropod

Legendary Enchantment Creature — Saga Nightmare

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Jecht Beam — Each opponent discards a card and you draw a card.
III — Ultimate Jecht Shot — Each opponent sacrifices two creatures of their choice.
Menace

Braska's Final Aeon

Final Fantasy Promos

Legendary Creature — Human Warrior

Menace
Whenever Jecht deals combat damage to a player, you may exile it, then return it to the battlefield transformed under its owner's control.

Jecht, Reluctant Guardian

Assassin's Creed

Legendary Creature — Human Assassin

First strike
When Layla Hassan enters and whenever one or more Assassins you control deal combat damage to a player, return target historic card from your graveyard to your hand.

Layla Hassan

Legendary Creature — Bird Scout

Flying, vigilance
{T}, Exile Senu: You gain 2 life and scry 2.
When a legendary creature you control attacks and isn't blocked, if this card is exiled, put it onto the battlefield attacking.