Nightcrawler

With: Bastion

Bastion: For each defeated Synergy Champion on the team, gain +6% Attack Rating. Mutant Champions: For each Mutant Champion on the team, gain +4% Attack Rating.

With: Beast

Mutant Champions: Special Attack hits gain +12% 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: Dazzler

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

With: Gambit

All Champions: +5% Perfect Block Chance.

With: Guardian

All Champions: +130 Armor Rating.

With: Havok

Havok: Each time Havok deals Energy Damage to the Opponent he has a 10% Chance to gain 1 Plasma Charge. Nightcrawler: Begin the fight in Swashbuckling Mode, and while in this mode his chance to Instant Bleed is increased by a flat 30%.

With: Kitty Pryde

All Champions: +130 Armor Rating.

With: Lumatrix

All Champions: +60 Critical Damage Rating and +60 Critical Rating.

With: Phoenix

All Champions: +5% Perfect Block Chance.

With: Pixie

Pixie: Activating a Special Attack 1 above 2 Bars of Power causes the final hit to inflict an additional Neuroshock. Nightcrawler: Dodging Special Attacks grants Nightcrawler an additional Prowess. Cooldown: 0.3 seconds.

With: Pixie

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

With: Professor X

All Mutants and X-Men except Professor X: Gain 6% of a bar of Power every 10 second(s) for each Cerebro Charge Nightcrawler: +30% Bleed Potency.

With: Rogue

All Champions: +6% Health.

With: Ronin

Ronin: Blocking Attacks has a 50% chance to inflict a Bleed Debuff causing 25% of Attack Rating as direct damage over 5 seconds. Nightcrawler: When switching Combat Modes, gain +350 Critical Damage Rating for 10 seconds.

With: Sentinel

Sentinel: While fighting Mutant Champions, the Opponent suffers 25% reduced Attack Rating during Special Attack hits.

With: Spider-Man (Classic)

Spider-Man (Classic): *THWIP* Nightcrawler: *BAMF*

With: Yondu

All Champions: +400 Block Penetration.