A red abishai is under the effects of Freedom of Movement, gets knocked unconscious, and is bound by ropes. He wakes up, because the party want to talk to him.
Does FoM allow the devil to automatically escape from the rope bindings?
Secondly, the Abishai's tail sting deals damage, plus 2d6 fire damage. While bound, can the devil attack the ropes, and thus burn through them, freeing himself?