4.4 Release Notes
September 29, 2020

Scientist Supreme's game-changing discovery has arrived: Iso-8!

For the first time in the history of MARVEL Strike Force, you can now customize your characters. Similar to gear, Iso-8 is a progression system that outfits your characters with additional Power, new Abilities, and allows for theorycrafting to mold your teams to your desired playstyle and goals. Commanders level 55 and above can access the Iso-8 tutorial for a full briefing and hands-on experience with this powerful new tool. Thank you to the Community for your fantastic feedback during the development process. We're looking forward to seeing the fun ways you use Iso-8 to transform the game landscape.

Also arriving over the course of this release:

  • Enhance your roster with 3 new playable characters: Scream, Anti-Venom, and She-Hulk

  • Ability enhancements for Human Torch, Mister Fantastic, Invisible Woman, and The Thing

  • Two new Challenge Tiers added for all Challenges

  • Assemble a top squad with the limited-time Metamorphosis Trait for the Scream Event Campaign, "Parasitic Intentions"

  • Marvelous new app icon


  • Unfiltered fix: iOS devices can now properly see the Squad Select filter options.

  • Visual correction: Characters now display the correct Health in the Saved Squad screen after completing a Raid battle.

  • Favorites no longer appear at the top of the Squad Select filter.

  • Text Clarification: Domino's Special ability, "Fire in the Hole," updated to display the correct Damage amount in the description. The ability was dealing the correct amount of damage and remains unchanged.

  • Text Clarification: Spider-Man (Symbiote)'s Level 6 Basic ability, "Quick Strike," updated to include that it applies Defense Down for 2 turns. The combat behavior is correct and remains unchanged.

  • Text Clarification: Captain America's Level 2 Ultimate Ability, "Shield Throw," updated to include "Chain to 2 additional targets" after being upgraded from Level 1. The combat behavior is correct and remains unchanged.

  • Oh my stars and garters, the animation for Beast's Basic ability, "Dignified Strike," now works correctly for all levels.

  • Black Bolt's Passive ability, "King of Attilan," was sometimes not triggering when one or more enemies had Deathproof. This no longer occurs.

  • The Tier 10 Ability Enhancement Challenge information card incorrectly stated players needed to be Level 60 to unlock. This has been corrected to "Level 65."

  • Fixed: An issue sometimes occurred when entering the character information screen for a summoned Mysterio summoned by Doctor Octopus.

  • A red badge no longer appears on the Ultra Store tab for players that haven't unlocked the Ultra Store.

  • War opponent information was sometimes being cut off in the Squad Select Screen. This bug has been defeated.

Character Updates

Dev Note: Now that She-Hulk is joining the Fantastic Four in an unofficial capacity, we adjusted the rest of Mister Fantastic's family to incorporate her into their Synergies, as well as benefit from She-Hulk's powerhouse presence on the battlefield.

Human Torch

Special - Heating Up

Updated: Apply +1 Offense Up, up to a maximum of 3, to all FANTASTIC FOUR, Namor, or She-Hulk allies.

Passive - Flame On!

Updated: FANTASTIC FOUR, Namor, and She-Hulk allies gain +30% Damage. 

Mister Fantastic

Ultimate - Orbital Assault

Updated: If She-Hulk is an ally, instead, clear Defense Up on primary target and another enemy with the most Armor. Attack both targets for damage.

Passive - For Science!


  • Gain +60% Focus and Resistance for self, FANTASTIC FOUR, Namor, and She-Hulk allies.

  • On self and each FANTASTIC FOUR or She-Hulk ally's turn, apply Assist Now to self, Namor, She-Hulk, or a random FANTASTIC FOUR ally. If Assist Now is applied, clear Blind on that target.

Invisible Woman

Passive - Hard Light

New: On WAR DEFENSE, on Spawn, if She-Hulk is an ally, gain Defense Up for 2 turns for self, She-Hulk and all Fantastic Four allies.


  • When an enemy attacks a FANTASTIC FOUR or She-Hulk ally with Barrier, attack that enemy for 250% damage.

  • Gain +20% Max Health. FANTASTIC FOUR, Namor, and She-Hulk allies gain +20% Max Health.

The Thing

Passive - It's Clobberin' Time

Updated: Gain +20% Armor. FANTASTIC FOUR, Namor, and She-Hulk allies gain +20% Armor.

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