Aniekan Udofia

Spectacular Showdown

Put a double strike counter on target creature, then goad each creature that had a double strike counter put on it this way. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)
Overload {4}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

"People call me with their problems. They feel the cops don't care, the Avengers got bigger issues, and Spidey's number isn't listed. But they have my number, so they call me."

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.)

"Aaaah! Is this what it's like for people I swing around? I'm gonna throw up!"
—Spider-Man, Miles Morales

Starling, Aerial Ally

Flying
When Starling enters, another target creature you control gains flying until end of turn.

"Peter always disappears when Spider-Man is around. How very odd."
—Captain George Stacy

Selfless Police Captain

This creature enters with a +1/+1 counter on it.
When this creature leaves the battlefield, put its +1/+1 counters on target creature you control.

"I wear this uniform out of respect for Captain America . . . Isaiah Bradley, my grandfather."

Patriot, Young Avenger

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
As long as Patriot is equipped, other creatures you control get +1/+0.

Okoye, Mighty and Adored

When Okoye enters, you become the monarch.
At the beginning of combat on your turn, put a +1/+1 counter on target creature. Whenever that creature attacks the monarch this turn, it gains double strike and trample until end of turn.

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.

"You have done well, Child of Bast. Now rest, sit in the shade of the country you have fought for, and heal. For at least a moment, until you are called to fight again."

Harmonize

"Name's Flatman. I'm the deputy leader of the Great Lakes Avengers! And I need answers!"

Flatman

Origami-Fu — {2}{G}: Switch Flatman's power and toughness until end of turn.

Doorman

{T}: Until end of turn, target creature can't be blocked by creatures with power 2 or less and/or Walls.

Black Panther, Vanguard

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.

Spider-Man, Brooklyn Visionary // Spider-Man, Brooklyn Visionary

"Nothing like a little crimefighting after class."

Spider-Man, Brooklyn Visionary

Web-slinging {2}{G} (You may cast this spell for {2}{G} if you also return a tapped creature you control to its owner's hand.)
When Spider-Man enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

"Being Spider-Man has brought me nothing but unhappiness! And for what?"

Spider-Man No More

Enchant creature
Enchanted creature is a Citizen with base power and toughness 1/1. It has defender and loses all other abilities. (It also loses all other creature types.)