find the odd one out

anyone can play along from home. Christos Gage has created in Avengers Academy a fresh batch of riveting and diverse teenage would-be(?)-heroes, and, as is evident from their brief character bios in the issue summary page cropped above, he has smartly used each of their powers as a subtle and powerful metaphor for their personality. well, for the most part. one of them may have just been saddled on him to boost (?) sales through the crossover factor with a currently successful cartoon program. dunno, you figure it out.