Luke Cage, Power Man

Unbreakable Skin — Whenever Luke Cage attacks alone, he gets +2/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy him.)

Alien Invasion

Alien

At the beginning of combat on your turn, create a 1/1 red Alien creature token with haste and "This token attacks each combat if able." Put a +1/+1 counter on it for each invasion counter on this enchantment, then put an invasion counter on this enchantment.

Ant-Man, Colony Commander

Insect

Whenever Ant-Man attacks, you may pay {1}. When you do, put a +1/+1 counter on target creature.
Whenever you put a +1/+1 counter on a creature, create a 1/1 green Insect creature token. This ability triggers only once each turn.

Ares, God of War

Ares attacks each combat if able.
Whenever an attacking creature you control dies, return that card to its owner's hand.

Armor Wars

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — You may draw a card for each artifact you control. If you do, each opponent draws a card.
II — Artifact spells you cast this turn cost {1} less to cast.
III — This Saga deals X damage to target opponent, where X is the greatest mana value among artifacts you control.

The Astonishing Ant-Man

Whenever you draw a card, put a +1/+1 counter on The Astonishing Ant-Man.
{2}{G}, {T}, Remove any number of +1/+1 counters from The Astonishing Ant-Man: Create that many 1/1 green Insect creature tokens.

Treasure

Villain

Avengers: Under Siege

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Create two 2/1 black Villain creature tokens with menace.
II — This Saga deals 2 damage to each non-Villain creature and each opponent.
III — Create a Treasure token for each Villain you control.

Beast, Erudite Aerialist

As long as you've put one or more +1/+1 counters on Beast this turn, he has flying.
Whenever Beast deals combat damage to a player, draw a card.

Black Panther, Vanguard

Soldier

Whenever another nontoken Hero you control enters, choose one —
• Create a 1/1 white Soldier creature token.
• Creatures you control get +1/+1 until end of turn.

Black Widow, Double Agent

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.)

Bullseye, Death Dealer

When Bullseye enters, you may sacrifice an artifact or discard a nonland card. When you do, Bullseye deals 2 damage to any target.
{3}, {T}, Sacrifice an artifact or discard a nonland card: Bullseye deals 2 damage to any target.

The Mind Stone

Indestructible
{T}: Add {W}.
{5}{W}, {T}: Harness The Mind Stone. (Once harnessed, its ∞ ability is active.)
∞ — At the beginning of your end step, exile up to one other target nonland permanent you control, then return that card to the battlefield under its owner's control.

Captain America, Living Legend

Vigilance
Whenever a creature you control becomes tapped during your turn, if it's the first time that creature has become tapped this turn, untap it.

Cloak and Dagger, Entwined

Deathtouch, lifelink
When Cloak and Dagger enter, choose target opponent and up to one target creature they control. They reveal their hand. You may exile a nonland card from their hand or the chosen creature until Cloak and Dagger leave the battlefield.

Galactus

The Coming of Galactus

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Destroy up to one target nonland permanent.
II, III — Each opponent loses 2 life.
IV — Create Galactus, a legendary 16/16 black Elder Alien creature token with flying, trample, and "Whenever Galactus attacks, destroy target land."

Daredevil, Man Without Fear

Vigilance, haste
Radar Sense — You may look at the top card of your library any time.
Whenever you attack, you may exile the top card of your library. If that card is a Hero card, Daredevil gets +2/+1 until end of turn. You may play that card this turn.

Marvel Super Heroes