[Noxid]

Which uses up item slots that can't be reused or they have to spend m to cure it. Less M to spend on healing or damaging the other team. If you suspect the enemy to be packing immunities then you pack the appropriate counter strategies. You can dispel the immunity or even drain their FP. At the end of the day though this game is a big rock paper scissors and sometimes you just ain't gonna gonna guess right.

Editpam healing is not an issue. Use something other than pure damage. Pack some utility into your team comps