MACH-1, Swooping Scoundrel

Flying
When MACH-1 enters and whenever you gain life, surveil 1. This ability triggers only once each turn. (To surveil 1, look at the top card of your library. You may put it into your graveyard.)

Minion Missile

As an additional cost to cast this spell, sacrifice a creature or discard a card.
Destroy target creature. Minion Missile deals 2 damage to that creature's controller.

Origin of Black Widow

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Each opponent sacrifices a creature of their choice.
II — Creatures you control gain deathtouch until end of turn.
III — Each opponent loses 1 life for each creature card in their graveyard.

Radioactive Man

Deathtouch
Whenever Radioactive Man deals combat damage to a player, that player loses half their life, rounded up.

Sadistic Slash

Target creature gets -5/-5 until end of turn.
Mayhem {1}{B} (You may cast this card from your graveyard for {1}{B} if you discarded it this turn.)

Titanium Man

Whenever Titanium Man attacks, choose one —
• Titanium Man gains flying until end of turn.
• Titanium Man deals 1 damage to any target.

Ultron the Annihilator

Robot Villain

Flying
Whenever Ultron enters or attacks, create a 2/2 colorless Robot Villain artifact creature token.
Whenever another artifact is put into your graveyard from the battlefield or an artifact card is put into your graveyard from anywhere other than the battlefield, each opponent loses 1 life.

Ultron's Auxiliary

Menace
Whenever another artifact is put into your graveyard from the battlefield or an artifact card is put into your graveyard from anywhere other than the battlefield, put a +1/+1 counter on this creature.

M'Baku, Jabari Chieftain

At the beginning of your end step, if there is no monarch, target opponent becomes the monarch.
Whenever a creature attacks one of your opponents, if that player is the monarch, that creature gets +1/+1 and gains trample until end of turn.

Undead Hand Ninja

Deathtouch
Whenever one or more creature cards leave your graveyard, each opponent loses 1 life and you gain 1 life.

Valentina Allegra de Fontaine

Other Villains you control are Heroes in addition to their other types.
{T}: Target Hero you control connives. Activate only as a sorcery. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Villainous Syndication

Tap an untapped Villain you control: Mill a card. Put a plan counter on this enchantment. Activate only as a sorcery. (To mill a card, put the top card of your library into your graveyard.)
When the fourth plan counter is put on this enchantment, sacrifice it. When you do, return target creature card from your graveyard to the battlefield.

Viper, Cruel Conspirator

{B}: Target creature that's attacking alone gets +1/+1 until end of turn.
{B}: Target creature that's attacking alone gains your choice of deathtouch or lifelink until end of turn.

Void Helix

Void Helix deals 5 damage to any target and you gain 5 life.

Voltaic Whip

Equipped creature gets +2/+0 and has "Whenever this creature attacks alone, you draw a card and lose 1 life."
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

White Widow, Yelena Belova

Deathtouch
Whenever a creature you control with deathtouch deals combat damage to a player, put a +1/+1 counter on it.

Marvel Super Heroes Commander