The MUX Cutoff is Marvel Comics 1992, post Galactic Storm and the Muir Island Saga. The MUX opens with characters being right where they left off after those two events. Below you will find a list of teams and individuals with a brief jump off summary by sphere.
Acolytes
- Exodus, Scanner, Senyaka
Alpha Flight
- Guardian, Vindicator, Sasquatch, Talisman, Puck, Snowbird
Avengers, East Coast
- Captain America, Wasp, Ant-Man, Thor, Hercules, Vision, Black Knight
- ICly the roster has changed more than one changes their underpants. See the team roster.
Avengers, West Coast
- Hawkeye, Mockingbird, Iron Man (Rhodes), Scarlet Witch, Wonder Man, Tigra
Excalibur - Issue #52
- Captain Britain, Meggan, Phoenix, Shadowcat, Nightcrawler, Feron, Kylun, Cerise, Alistaire Stuart, Widget, Lockheed
- ICly Nightcrawler has joined X-Factor
Fantastic Four
- Mr Fantastic, Invisible Woman, Human Torch, Thing
Heroes for Hire
- Iron Fist, Power Man
Mutant Liberation Front
- Stryfe, Zero, Rusty, Skids
New Warriors
- Nova, Speedball, Namorita, Marvel Boy, Firestar
Sinister Six
- Doctor Octopus, Hobgoblin, Sandman, Mysterio, The Lizard, Electro, Kraven
Spider-Man - Amazing Spider Man
Starjammers
- Corsair, Hepzibah, Raza, Ch'od, Sikorsky
X-Men Blue Team - #281ish
- Beast, Cyclops, Rogue, Wolverine, Psylocke, Jubilee, Gambit
X-Men Gold Team - #281ish
- Storm, Angel, Iceman, Colossus, Bishop, Jean Grey
X-Force
- Cable, Warpath, Richtor, Domino, Siryn, Shatterstar, Feral, Cannonball, Boomboom, Sunspot
X-Factor - v2 #1
- Havok, Polaris, Wolfsbane, Quicksilver, Strong Guy, Multiple Man
- ICly Havok, Siryn, Nightcrawler, Mirage, Sunpyre, Gypsy Moth, Dervish