Colossus

With: Old Man Logan, Wolverine

Colossus: Gain a Fastball Fury Buff at the start of the fight, granting +50% Attack and +50% Special Attack rating for 15 seconds. Wolverine and Old Man Logan: Begin the fight with 1 Bar of Power.

With: Juggernaut, Unstoppable Colossus

Colossus: Armor Up Buffs also grant +1% Attack Rating. Juggernaut: Start the fight with 3 of his Unstoppable Buffs active. Unstoppable Colossus: +20% Fury and Armor Up Buff Potency.

With: Wolverine, Old Man Logan

All Champions: +130 Armor Rating.

With: Rogue, Beast, Domino, Magneto (House of X)

All Champions: +130 Armor Rating.

With: Gambit, Wolverine (X-23), Deadpool, Deadpool (X-Force), Goldpool

All Champions: +130 Armor Rating.

With: Juggernaut

All Champions: +155 Critical Rating.

With: Hyperion, Mister Sinister, Magneto

All Champions: +155 Critical Rating.

With: Magik

All Champions: +5% Health.

With: Arcade

Synergy Champions: During Special Attacks 1 and 2, gain 4% Attack Rating for each living Synergy Champion.

With: Archangel

Mutant Champions: Special Attack hits gain +12% Attack Rating.

With: Beast

Mutant Champions: Special Attack hits gain +12% Attack Rating.

With: Captain Britain

All Non-Villain Champions: Gain 10% Attack Rating, 5% Physical Resistance, 5% Energy Resistance vs. Villains.

With: Cyclops (Blue Team)

Mutant Champions: Special Attack hits gain +12% Attack Rating.

With: Cyclops (New Xavier School)

Mutant Champions: Special Attack hits gain +12% Attack Rating.

With: Dazzler

Synergy Champions: +10% Special Damage, or +20% If Magneto is on the team.

With: Domino

All Champions: +5% Power Gain.

With: Emma Frost

Emma Frost: Emma Frost switches to Diamond Form when she and the Opponent are in the same bar of Power. Colossus: +2% increased Power Gain for each Armor Up Buff.

With: Galan

Galan: Converting Resistances into Planetary Mass creates an additional 5 Planetary Mass per Resistance. Colossus: Colossus’ Special Attack 1 becomes passively Unblockable when activated with 5 or more Personal Armor Up Buffs.

With: Guardian

All Champions: +130 Armor Rating.

With: Juggernaut

All Champions: +155 Critical Rating.

With: Kitty Pryde

All Champions: +5% Combat Power Rate.

With: Magik

All Champions: +5% Health.

With: Magneto (House of X)

Colossus: Opponent’s Nullify & Stagger effects suffer -65% Ability Accuracy. Magneto (House of X): Defeating #Villain Champions grants 1 Persistent Charge. +10% Attack while fighting #Villains.

With: Negasonic Teenage Warhead

All Champions: +5% Perfect Block Chance.

With: Omega Red

Omega Red: +4% Critical Damage for each Death Spore on the opponent. Colossus: +2% Attack Rating for each Armor Up Buff and Well Timed Blocks grant an Armor Buff. [Max 1 Stack].

With: Pixie

All Champions: +130 Armor Rating and +5% Incinerate Resistance.

With: Professor X

All Mutants and X-Men except Professor X: +18% Poison Resistance for each Cerebro Charge Colossus: Start each fight with 1 indefinite Armor Up Buff, granting +15% Armor Rating.

With: Red Guardian

Colossus: Activating any Special Attack has a 50% chance to trigger an Unstoppable Buff, lingering 1.2 seconds after the Attack ends.

With: Storm (Pyramid X)

Mutant Champions: Special Attack hits gain +12% Attack Rating.

With: Sunspot

All Champions: +130 Armor Rating. Increased to up to +330 based on Sunspot's Signature Level.

With: Titania

Synergy Champions: Increase the potency of Fury effects by 4% for each Synergy Champion present. Max: 20%.