In the early 90s mutants were big, so they again updated them for the Advanced Game.
This similar campaign set has a 63 page roster book of heroes and villains, including newcomers like Trevor Fitzroy, Omega Red, Lady Deathstrike and more.
Also has stats for Domino, I noticed and some X-Factor the later.
— Apocalypse, Archangel, Avalanche,
Banshee, Beast, Bishop, Boom Boom,
— Buzz Cuts, Banisher, Black Queen, Blacklight, Blob, Black Tom Cassidy,
Cable, Cannonball, Captain Britain, Rusty Collins, Colossus, Val Cooper, — Crimson Commando, Cyclops,
Dinosaur, Domino, — Deadpool,
Forge, — Feral, Flashing Blades, Trevor Fitzroy, Foreman,
Gambit, — Gideon,
Jubilee, — Juggernaut,
— Lady Anguish, Lady Deathstrike,
Marvel Girl, Fiona McKenna, Meggan, Multiple Man, — Magneto, Mr Sinister, Mystique,
— Omega Red,
Phoenix II, Polaris, Professor X, Psylocke, — Pyro,
Rogue, — Robot,
Shadowcat, Shatterstar, Siryn, Skids, Storm, Strong Guy, Sunspot, — Steel Cavalry, Sabretooth, Sauron, Sentinel VII, Shinobi, Spiral, Stryfe, Super Sabre,
— Terra Firma, Toad,
Warpath, — Wolverine, Wolfsbane,
1.17 Character Density