The helmet protects his mind from psionic/exotic energy attacks. And it's not as if he's going to stand there and let him do it. He's bloodlusted. He'll blitz them before they can blink.
As I understand it, IW drops those forcefields through hiperspace, so barriers in the normal dimension can't keep her from dropping the force bubles behind them. The same would apply to SS.
Listen man. It won't matter. If Nova is bloodlusted he will blitz them before they can even move. He has significant advantages in every catergory i.e. speed, strength, durability, and overall power.
He's doing no such thing. These two would destroy him. He's blitz his face into a invisible force field surrounding these to. Skrull puts him into a bubble and crushes him from with in. Either can give him a fight, both of them are going to stomp him.
So they're going to hide in an invisible bubble? LULZ! Last time I checked there was still gravity present, unless you're telling me it's a zero-g invisa bubble. He'll turn them into puddles of goo.
WorldMind supplies on the fly counter measures at superfast speeds.
If SS tried to force wall Nova he would see it and evade it at insane speeds.
SS can't put a bubble in the head of someone he can't see clearly.
If SS resorts to using his forcefields to protect himself that's when the crushing gravity manipulation begins....not like it hadn't already during his unsuccessful offensive strikes.
Ronan has had such bad showings lately that he doesn't even factor in this fight.
Nova wins. He is simply out of their league. And I'm surprised some of you don't see it.