This is not a gauntlet. Ben fights each of these X Men one by one. He knows his opponents, they don't know him. He starts transformed. How many of these can he defeat? Who'll defeat him?
Ben with master control unlocked Ultimatrix with access to Omniverse aliens as well.
9. Rogue(Ms. Marvel powers)
13. Jean Grey(Not Phoenix)
14. Charles Xavier
16. Quick Silver
Again, this is NOT a gauntlet, so don't say he stops at 4 or 5 or whatever.