Ultimate X-Men #70A

Phoenix?, Part 2
Elliot Boggs manages to be a part of the "away team" heading to Frost's school, where they encounter a number of threats, including other students who think they are the Brotherhood, thanks to Mastermind. Elliot handles himself quite well, showing an impressive display of abilities and improvisations in combat. Meanwhile, the Shi'ar testing of Jean Grey triggers something quite unexpected.
Release Date: 2006