Captain America

With: Captain America (Infinity War)

Science Champions: Place a Passive Weakness on the Opponent reducing their Attack by 50% except while being struck by them.

With: Captain Marvel (Classic)

All Champions: +130 Armor Rating.

With: Civil Warrior

All Champions: +6% Attack Rating.

With: Corvus Glaive

All Champions: +7% Attack Rating.

With: Count Nefaria

All Champions: +155 Critical Rating.

With: Crossbones

All Champions: +6% Attack Rating.

With: Daredevil (Hell's Kitchen)

Synergy Champions: +10% Health Rating. Daredevil (Hell's Kitchen): Heavy Attack Cruelty Buffs gains +60% duration and Potency but costs 5 additional Combo Meter.

With: Falcon

All Champions: +4% Health & +7% Attack rating.

With: Havok

Havok: Well Timed Blocks grant +1 Plasma Charge. Captain America: Passively increases Attack by 20% of Base Attack when Striking a Debuffed Opponent.

With: Hulk (Immortal)

Hulk (Immortal): Personal Stun Effects have +10% increased duration. Captain America: Opponents suffer -10% Ability Accuracy while Stunned.

With: Iron Man

All Champions: +130 Armor Rating.

With: Iron Man (Infinity War)

Iron Man (infinity War): Blocking reduces 10% more damage. Captain America: Weakness, Fatigue, Bleed, and Petrify Debuffs last 15% longer.

With: Iron Patriot

All Champions: +115 Critical Damage Rating.

With: Jack O'Lantern

All Champions: +155 Critical Rating.

With: Longshot

Longshot: Start a Fight with 5 Good Karma when fighting Villain Champions. Captain America: While the Opponent is Fatigued their Ability Power Rate is reduced by 110%.

With: M.O.D.O.K.

All Champions: +6% Attack Rating.

With: Maestro (Cosmic)

Maestro (Cosmic): +10% Fury potency for each Synergy Champion on the team.

With: Mangog

Mangog: While Enraged, Attacks deal a burst of Energy Damage equal to 6% of Modified Attack. #Avengers: Start the fight with an indefinite Passive Fury granting 10% Attack Rating.

With: Ms. Marvel

All Champions: +130 Armor Rating.

With: Onslaught

All Champions: +155 Critical Rating.

With: Patriot

All Champions: +4% Health & Attack rating.

With: Punisher

All Champions: +115 Critical Damage Rating.

With: Punisher 2099

Punisher 2099: Begin the fight with 15% additional Battery charge. Captain America: Clean hits gain +20% Attack rating if the opponent has a Stun, Bleed or Fatigue Debuff.

With: Scarlet Witch

All Champions: +6% Health.

With: Sentry

All Champions: +130 Armor Rating.

With: Sersi

Sersi: Start the fight with an indefinite Armor Up increasing Armor Rating by 100.

With: Shang-Chi

Synergy Champions: Landing a Critical Hit grants an additional +2% Critical Damage Rating. Max 100 hits.

With: Silver Centurion

Captain America: Each time the Opponent is immune to a Stun effect, gain an Unstoppable Buff for 1 second.

With: Silver Sable

All Champions: +130 Armor Rating.

With: Spider-Man (Classic)

All Champions: +6% Health.

With: Sunspot

Avengers and New Avengers: When fighting Villain Champions, reduce the Potency of any Power Sting and damage over time effects by 10%. Increased to up to 40% based on Sunspot’s Signature Level.

With: Superior Iron Man

All Champions: +155 Critical Rating.

With: The Overseer

The Overseer: 15% chance that a Block is a Perfect Block, reducing all damage to 0. Captain America: Intercepting the Opponent grants a non-Stacking Passive Fury, granting 50% Attack Rating for 7 second(s).

With: Venompool

Venompool: +3% Perfect Block Chance for each Buff on Venompool. Max Bonus +21%. Synergy Champions: +4% Health & Attack Rating.

With: Vision (Aarkus)

Synergy Champions: Special Attacks cost 15% less Power.

With: Void

Void: Fear of the Void activates at the start of the fight for 30 seconds against the Avengers. Avengers: +15% Attack Rating.

With: War Machine

All Champions: +155 Critical Rating.

With: Winter Soldier

All Champions: +5% Perfect Block Chance.

With: Wolverine

All Champions: +130 Armor Rating.