During [s] Cascade, we see Bec Noir disappearify himself from where the exiles were staying and then he shows up in the trolls session to sabotage their game, is that how it works? Can he disappearify into another universe? Also, why did the exiles need to blow up the pods?

That was a special disapperaifier as it had the the different universe switches.

And they didn’t need to blow them up AR was just doing to so that no one could spy on the kids any more.