One liner champion buffs.

CASW- Consume 5 Armour up to grant 30% Fury Buff of 12 secs.

Gwenpool - on heavy attack Consume 3 or more bleed defuff and apply critical bleed for 3 sec for each debuff consumed.

IMIW- For each Armour Break on the opponent increase the duration and potency of personal DOT debuff by 15%

Killmonger- Bleed debuffs can stack max stack 5.

Luck Cage- Heavy Attacks pause personal debuffs for 3 secs.

Mystero- Last medium attack consumes 1 chemical gas to pause frenzy gas for 5 secs if active.

Rogue- Basic Attacks deal 30% additional energy damage, And Gain 10% Prowess charge for each defeted opponent in quest.

Surfer- Launching Special attack grant precision buff for 5 sec for each unique buff.

VTD- Each persistent charge grants 10% Attack and at 5+ gain true accuracy at 10 gainTrue Strike.

Kept them such that they are not OP but can help mid tier champs a bit.

Comments

Terra

Drax: Standing still for 3 seconds makes him invisible and opponent to 100% falter.
Gives him 15% Regen because he eats a bag of chips.

unknown

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GrandOldKai

Civil Warrior: On Special Attack activation, pause all Fury buffs for 10 seconds.
Cyclops (red): Armour Break duration and potency is increased by 75% for each Mutant champion on the team.

PapaMidnite007

Drax: Standing still for 3 seconds makes him invisible and opponent to 100% falter.
Gives him 15% Regen because he eats a bag of chips.

Forgot he was standing there I didn't see him

Rockypantherx

Anti-Venom: SP2 no longer consumes debuffs
Yellowjacket: Gain +1% attack for each nuclear core charge
Red Guardian: Trauma debuffs now last a base 10 seconds
Iceman: Frostbites now have 100% chance to land on critical hits and deal +200% damage
Rogue: Double/Triple buff steal timer
Silver Surfer: Double burst damage per buff
Dormammu: Gain 100% attack while Imbued

Mauled

VtD - light ending combo generates defensive buff (regen/armour up/resistance), medium ending combo generates offensive buff (precision/fury/power gain)

X-23 - critical hits crit bleed, intercepts grant passive fury for 5 seconds, stackable (3)

Rogue - buff steal paused during special attacks, intercepts apply taunt debuff for each buff on rogue.

Gulk - medium hits armour break. Successful heavy can convert to armour shatter and refresh them. Sp3 makes all armour shatters permanent.

Proxima - prefight to select starting mission. Poison resistance. At max sig carry 1 completed mission over to next fight.

WS - bullet prefight, 50% bleed & poison resistance due to serum.

Phoenix - incinerate cause -100% damage, increase her incinerate potency by 100%.

Superior Ironman - delete from the game.

Ercarret

OG Hulk - The strongest there is - automatically adjust his base attack value to match his opponent's.

Punisher: Indestructible is paused while the opponent bleeds.

Psylocke: Medium finishers stack indefinite bleeds equal to her amount of Psi Charges.

OG Iron-Man: Arc Overload activates every time Iron-Man falls under 50% health and gives him a persistent +20% damage increase for the rest of the quest.

Groot: Pacifism buffs become indefinite and stack throughout the quest.

Iron Fist: Guaranteed Critical Hits against armor broken opponents.

Shivacrux

Rocket racoon- for every intercept gain a indefinite cruelty buff,lose all buffs when hit max stacks 100

Iron man- 10% lifesteal and 10% power burn on crits ,starts the fight with 0 crit rating but is increased gradually over time until it reaches 8k

Captain america- immune to all forms of DOT active and passive under 5% health

Black widow- whenever an opponent ability fails gain a 60% prowess passive,max stack -5,removed after a special attack

Night thrasher - at 10 furies reflect damage when attacking with skate board

Terra

MoleMan: Moleman's heighten senses allow him to predict his opponets movements granting him passive true accurary, however he loses this ability if in frenzy and above 10 monster mass

Corvus Glaive: Missions can be completed in any order and can be repeated, max stack of 12 persistent charges.
Doctor Doom: Fury Buffs max stack at 5
Hercules: Feats of strength - Passive - max stacks 24

I mean. The Hercules 12 limit has a mythological base.
12 feats of labor ring a bell?

0casual0

Red Hulk - Gain +1/2 Heat Charge at the start of a fight when win a previous fight.

TheBair123

Crossbones - Gain an Aptitude buff, increasing fury potency by 20% when reaching a multiple of 10 fury buffs (10, 20, 30, etc.) cooldown 10 seconds

unknown

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Colinwhitworth69

VtD - light ending combo generates defensive buff (regen/armour up/resistance), medium ending combo generates offensive buff (precision/fury/power gain).

That’s a really great idea.

13579rebel_

Nightcrawler increase bleed potency by 200%

BUFFED

World Eater

Rogue and Loki

Actually working per their listed abilities and can copy and steal all buffs.

SkyLord7000

Kinda wish they made a beta sever and put all this stuff in. Anything liked by the team and community could be put out in the live game.

Magrailothos

Mephisto: Soul charges increase Special Attack damage by +20%, and SP1 doesn't consume charges to inflict Soul Imprisonment if thrown after a Light attack.

The_Sentry06

Sentry: Each Reality Warp Charge grants +200% attack.

ChaosMax1012

Karnak: standing idle places a fear debuff on the opponent and they forfeit the match

Yodabolt21

Red Hulk - Heat charges stack to max of 20
MODOK - each auto block places a 7 second physical vulnerability debuff on the opponent. Max stack of 5
Killmonger - WS synergy added to base kit
Ronin - while the passive fury is active, bleed debuffs are critical bleeds
Guardian - intercepting with his sp1 doubles the amount of force filed charges gained durinng the attack
P2099 - if overdrive is active, crit rating is increased by 350
Green Goblin - each madness stack grants +20% attack
Proxima - multiple Missions are allowed to be completed at once
Dr. Voodoo - basic attacks have a 20% chance to place a loa buff

Rasilover

Blade: Gains a new hero danger sense synergy

PapaMidnite007

Diablo - Converts potions to alcohol and causes opponents to get stunned drunk

Hrishikesh713

Ihulk- Rage stacks expire after 4/5 sec
Rougue- Increase the buff stole duration
Ddhk- Fix the Regen rate similar to kingpin

Hrishikesh713

Thanos- He can finally use power of his infinity stones

0casual0

Mole Man - While *Frenzy* is active and not active, Mole Man's heightened senses allow him to predict his opponent's movements granting him passive true accuracy and stay there until the end of the fight and forever and ever!!! Please buff him again...

Colinwhitworth69

Maw: Remove the line that says he can only complete a mission once per fight.

TheDaywalker

Blade: Danger Sense vs Bleed Immune- Inflict matching Passive Degens instead of Bleed that grants Power as if the opponent was bleeding.
DDHK: Purify all Debuffs when starting the fight and when entering Murdock Boy.
Deadpool X-Force: Parry Stun and personal Debuffs are passive for the entire fight if Purify or cleanse triggers.
Sentry: Overhaul
Mangog: Max Hatred increased to 30 and Hatred gain from all sources except Sig ability is tripled.
Magik: Available 6-Star Version
Gorr: Convert one Bleed, Poison, and Shock Debuff into matching Shadow Magic Buffs. Cooldown: 40 seconds.
Super Skrull: All Buffs except Cosmic Overload are 50% longer and each Fury grants Armor Penetration.
Psycho-Man: Light Attack combo ender is unblockable and does 30% instant shock for each concussion triggered + failed abilities since the last Light Attack ender.
Ghost Rider: Reduce opponent Buff Potency and Duration by 20% for each Judgement.
Mephisto: Soul Imprison from sp1 no longer consumes souls and each soul adds 5 seconds to Soul Imprisonment.
Symbiote Spider-Man: Dirt.

HamoBlamo51

Star Lord: COMBO SHIELD (need i say more)

willrun4adonut

Vulture: When opponent is stunned, increase critical rating by 200%.

Terra

Star Lord: COMBO SHIELD (need i say more)

Doesn't he have synergies for this?