I'm pretty sure the answer to the second question is "yes, a warrior can use a scroll of protection."

I think everyone can use a scroll of protection. So that's the answer to your first question - the difference between the two is that a scroll of protection can be used by anybody.

ncG1vNJzZmivp6x7prrWqKmlnF6kv6h706GpnpmUqHylucZmqqmdnKF6tK%2FRqKOlZaaoerSv0aijpWWfm3qxvs6tnJysmaS7b4CQaWlraF8%3D