Looking for Assistance

Looking fir Assistance, was trying to build a list around pheonix and was imagining some kind of Magneto / Prof-x flexible leadership list. But I have no idea what im doing...

Characters (10) Phoenix (6)

• Magneto (6)
• Professor X (4) Toad (2) Emma Frost (4) Gambit (3) Rogue (4) Colossus (4) Beast (3) Magik (3)

I have no idea on tactics or mission selection or even if this roster would really 'do' anything.

Any help is very appreciated.