[friends]
...fecking shite. It is the barrier. Okay, I'll explain and I dinnae care if you tell others-
Isle of the Lost is a prison island. King Beasty decided to feck over everyone he thought was a villain and slapped em here. They put up a barrier that stops magic. No magic in, no magic out. It also keeps everyone on the Isle. Ye can't use yer magic because the barrier is up.