Hopefully this is the right place..?

So I'm trying to begin writing my pets stories/bio's and I've kinda created them all for this strange universe in my head (Just me, or anyone else done this?) So in this universe the main character is my Pet Kashern, and he is essentially a semi mad business man / mob boss. Now in this world magical powers/abilities exist cause why not! Kashern's ability is to manipulate other's emotions/state of mind (though not everyone's). Kashern is also a collector of rare things, and in the collection he has other people with powers. Some he has used his power on, other's he is simply keeping prisoner. Now I'm trying to think of another ability (or a few) that might fit in around the others in this whole storyline thing and that is what I need the help in! Also I'm trying to avoid using powers like clairvoyence/future site as I want to either keep this for down the storyline or not have it as its a huge plot hole haha.... Please help me?