I'm going to give one piece of advice for you all. Keep in mind, for your characters, that the first time they will ever be alive is at the beginning of the roleplay. There literally is nothing before that, so you cannot write about past experiences. They obviously have a set personality and powers, but besides that, they literally have little to no back story. Also, the power restraining device for every single character will be the collar shown in the OOC intro post. It has the capabilities to negate all powers when in effect, and has the ability to give more access to power or take it away by the controller. So there is no need for any special devices to negate powers as the collar is simplistic and 100% effective. There may be external weaknesses that may negate said powers, but the facility only needs to use the collar on you basically.

That should help when it comes to making and editing characters ^.^