Barrier also states you can hold it up preemptively but may take no action while doing so... Since an action is defined as an act that requires concentration or brain power could a player be walking around with a barrier held? I just wanted to clarify this as one of my players tried to argue it in o...

I had a question and I couldn't find the answer in other posts so here goes
can a player still roll their barrier ability in combat when a defense roll isn't allowed?

that is it for now