Crystal Healing

If you had the chance to get a spirit conjured into a vessel for you, that means a spirit put into an item, like a genie (djinn) in a lamp, what would it look like? Also what type would it be and what would you ask it for. Also it can be sexual lol like a nymph or succubus, but their are sexual djinn, watchers, etc. I would get a sexual watcher lol able to grant any occult ability to beyond movie powerful, XD she would probably appear as a medium grey skin, white hair, cat ears and tail XD, red eyed and big breasted lol.