I don't think that scene has anything to do with her mutant power, the article mentions a utility belt with tools and devices, so I think the dice are just an anti-gravity device.
Charlie Jane Anders confirmed on twitter that Escapade's (one of my favorite Janet songs btw) partner Morgan Red is also a trans mutant, which I think is probably a good thing. I think it makes it easier for Escapade and Morgan to live on Krakoa which makes it more likely they could appear in an X-book. Also, I think it's kind of funny they gave Escapade "blue hair and pronouns".