It's not just that she is weaker. It's also she's acting like she hasn't used them to fight many times. Like she hasn't trained a whole bunch. It's a complete retcon and I loathe it. It completely takes me out of an otherwise great book.

This isn't the Nico that's canon as far as I'm concerned. She has several gaming appearances, her powers are what's been established in Arena, Undercover and A-Force in all of them. What Nico( and Chase for that matter) went through in Arena was huge and meaningful and that being ignored is prime example of what's wrong with marvel comics and why nothing matters