Dropping my basic character idea here as others have done, I give you Jasper Morgans!

[img]https://64.media.tumblr.com/c1e8ef0727d0e9d63d459ceceeda75e2/tumblr_prpgzkKTzL1y5wxweo9_400.png[/img]

A stark contrast from the magic users currently on the team, Jasper's mutant powers are entirely based in his physical body: He possesses the ability of [b][u]total anatomy manipulation.[/u][/b] Jasper has complete control over just about every facet of his body, inside and out. This power possesses a wide variety of defensive, offensive and supportive capabilities, including:

-The ability to redistribute and control organic matter in his body, allowing him to reshape his form to give himself extra limbs, change around his anatomy, or repair damage taken. 
-The ability to alter the properties of his body: For example, hardening the skin and bone in his fists, or making himself limber and elastic. He cannot change the state of his body, however, meaning he must remain solid rather than liquid or gaseous. 
-Greatly increased speed, stamina, strength, reflexes and endurance that exceed those of even the fittest non-mutants. 
-A total mind-body connection that allows him to detach his body parts and still have control over them: For example, taking out his eye and using it for surveillance, or puppeteering his hand [i]Addams Family[/i] style. 
-Control over his metabolism, allowing him to resist the effects of drugs and poisons or delay their effect. 

And a few other things that are too niche or specific to mention. 

I'll go more in depth in regards to his personality and motives when the OOC pops up and we get cracking on character sheets, but he should have an interesting dynamic with the others regardless :)