Title, basically. On episode 3, after the new GoG tryouts. I think Rex and Kate should not have made the cut, and that they were only added solely for l plot. Rex is extremely weak, his only power is being able to explode things. Same with Kate, she can just duplicate herself. I imagine there were much better applicants than those 2. someone let me know if they agree
Kate can tank alot which is useful.
Yes Rex looks weak but there will be a moment when his ability to make things into a bomb will be useful. Wont spoil of course.