[quote=@Archangel89]
I'm interested but still trying to decide on what type of alchemist he would be
[/quote]

I know I did the drive based on the PC's personality or given skills. Example, Cade has electricity which is destructive [i]and[/i] life saving. Samad controls momentum which consists of speed and power based on that, reflecting his ability of control over himself namely because he uses it primarily on himself. 

Another way to go about it is to find an idea, then work toward making it bigger and wider in focus. 

A few things I think might be acceptable, though you might want to check with [@Xodus] to be sure, are listed below. I actually use a few for the Kians but Asylums are much higher level than Bloodlines or Rogues which means they can use the same powers likely. 

Vibration/Sounds- can control, magnify and even focus vibrations in the air, on contact can cut/crumble items over time, and even make it hard to hit by extending your image due to blurring. 

Metal/Magnetism Manipulation- can control and reshape any metal within a set area range into a variety of useful tools, weapons, etc. Likely carry your own stash for manipulation.

Hair Manipulation- can grow, strengthen (to a point) and even move your hair about to ensnare, block attacks, and cut opponents. 

Earth Manipulation- can control any local rock, soil, or natural earth around you in a certain range to block and attack (think Earthbender from Avatar). You also can sense when its been disturbed, how long ago,etc. This doesn't include metals.

Item Animation- can likely give 'life' to a set number of items (suggest 2-3 at one time) to attack, defend, or otherwise bend to your command. If you ever seen Fantasia and the scene below, that's what I mean though without the altering of the item itself.  

[youtube]https://youtu.be/xHEMkbyXFxs?t=52[/youtube]

There's a few to consider, though keep in mind you will have to figure out the actual limitations and weaknesses for whatever you chose. As well as make sure it's able to be exploited plausibly. Cade's, for example, can be negated with rubber and redirecting his electrical energy into the ground. Samad can't really stop an item and while he can slow an item, the larger it is then the harder it is to do so and takes more out of him. In addition, he can't affect the sharpness of a blade or the direction of a living creature like a human.