Funny you should mention Illusion. I was leaning towards a mentalist of that persuasion in reformulating a character concept.
Ideally, if its not too wide or strange a concept I'd like to play a teenager who was institutionalized because he could see, or claimed he could see, into the 'mental plane'. This mental plane is essentially a jumble of complex ideas in physical but non-euclidean form. While in the psychiatric hospital, he eventually managed to identify a couple of these objects/ideas, and pull them into the physical world. Or perhaps the mental plane doesn't exist and the objects are just a manifestation of his mutant power, its debatable. The first of these object would be 'the sleep of reason', providing access to mental Illusions and Mind Control. The second object would be 'invincible ignorance' providing resistible Invisibility and some defenses.
Sound workable? Sound workable enough that I could add a third object at this point usable only to stab people with?