Sentinel

With: Iceman, Cable, Nightcrawler, Deadpool (X-Force)

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

With: The Hood, Morningstar, Mordo, Kindred

Sentinel: While fighting Mystic Champions, the Opponent’s Power Lock effects suffer 50% reduced duration. Each time a Power Lock expires, Sentinel instantly generates 1.5 Bars of Power.

With: Void, Ant-Man, Electro, Photon

Sentinel: While fighting Science Champions, the Opponent's Debuffs suffer 50% reduced duration.

With: Kingpin, Killmonger, Black Panther (Civil War), Chee'ilth

Sentinel: While fighting Skill Champions, gain +1000 Critical Resistance.

With: Ultron, Yondu, Green Goblin, Ant-Man (Future)

Sentinel: While fighting Tech Champions, the Opponent’s effects that Steal, Burn, or Drain Sentinel’s Power suffer 30% reduced potency.

With: Bastion

Bastion: Personal Disintegration effects gain 20% increased duration. Sentinel: At max Analysis Charges, personal non-Damaging Debuffs expire 50% slower during the Opponent’s Special Attacks.

With: Bastion

All Champions: +6% Health.

With: Cassie Lang

All Champions: +5% Attack Rating for each #Size: XL Champion on the team.

With: Emma Frost

Emma Frost: +15% Attack Rating in Diamond Form. Sentinel: +4 Physical Resistance for each Analysis Charge.

With: Guillotine 2099

Sentinel, Guillotine 2099: Gain 70% of a Bar of Power each time an immunity prevents a Bleed or Poison effect. This can't trigger more than once every 12 seconds.

With: Jubilee

Jubilee: While Pink Fireworks Sentinel: Start each fight with +15 Analysis Charges for each Mutant team member.

With: Lady Deathstrike

Lady Deathstrike: +33% Armor Up potency. Sentinel: +66% Heal Block duration. Inflicting a Heal Block also inflicts a Cowardice Debuff, reducing Special Attack Damage by 50% for the duration of the Heal Block.

With: Nimrod

Robots: +225 Attack Rating for each additional Nimrod or Sentinel on the team.

With: Nimrod

Nimrod: Up to +25% Armor Rating based on missing Health. Robots: If a Robot is defeated. They gain a Self-Repair Cross-Fight which gets consumed when they enter their next Fight, Regenerating 25% of their missing health over 20 seconds. This effect ends early if Stunned.

With: Omega Sentinel

Omega Sentinel: Incinerate and Plasma Debuffs inflicted by Medium Combo-Enders instantly Power Drain the Opponent for 5% of their Max Power. Sentinel: Knocking down an Opponent Invalidates 1 Prowess effect from them.

With: Onslaught

Onslaught: +1290 Block Proficiency.

With: Sasquatch

Sasquatch: Start the fight with 3 Stacks of Rage. Sentinel: Start the fight with 30 Analysis Charges.

With: Sentinelbot (Cosmic), Sentinelbot (Tech), Sentinelbot (Mutant), Sentinelbot (Skill), Sentinelbot (Science), Sentinelbot (Mystic)

Sentinel: Enter the first fight ina quest with +1 spare Sentinel bot All Sentinelbot: +10 max Analysis Charges.

With: Squirrel Girl

Squirrel Girl: Each time a Robot Opponent is immune to one of Squirrel Girl’s personal Bleed effects, Squirrel Girl converts the Bleed into a Shock effect. Sentinel: Each time an Opponent is immune to one of Sentinel’s personal Incinerate or Shock effects, Sentinel gains 2 Analysis Charges. If Sentinel has his Analysis Complete, he deals a burst of 25% of his Attack Rating as Energy Damage each time instead.

With: Storm

All Champions: +155 Critical Rating.

With: Ultron

Ultron: Each Armor Up Buff also reduces incoming Stun Debuff duration by 0.5 seconds. Metal Champions: +5% Health and Attack Rating.