Your the one who does the binding

Tumbles the only way out of things like soulless, traps etc in most cases.

You'll see you need tumble when you start to fight more.

No kidding, if Cuber was serious anyway. Doubtful though.

He is serious

Oh good, then the next time Aerenna goes into one of her mood swings I'll just gladly ignore her.

You're coming back to Lusternia?

I'm friggin' serious. Should I send you a message in game to prove it?
And Aerenna is over mood swings anyway.

so if you get caught in an icewalled or even worse, stonewalled room and someone starts an instakill you can escape