Unless I totally don't understand Grundy's powerset, I don't think him being the version that can "smack supes around" does much other than prolong the fight. He'd have no answer to Iceman, Vulcan or Magneto (assuming the peak versions of all 3), and I would think Emma and Wolverine would him a good deal of trouble.
The only real way I can see a W for team 2 is if parasite can get a hold of Vulcan and use his energy manip against the long-range X-Men.