This is vaguely off-topic, but I'm thinking that during your escape from the prison, there's a vault with all kinds of strange and powerful objects which the Divine Magisters have collected and sealed away. That might be where the Shapeshifting mask and the Teleporter Pyramids are obtained from. The other powerful objects could still be locked up and inaccessible.

Sorry, I don't really have any suggestions for the shapeshifting mask right now, because it doesn't interest me and I have no intention of using it. As in if it's forced into my inventory I'll drop it on the ground.

If the consequences are too bad or too permanent, then people will avoid using it.

The idea that it has to be fuelled with Source Points to be used seems like a good one.

Last edited by Stabbey; 12/09/15 12:56 PM. Reason: added a couple thoughts