My group got this guy to the table for the first time this week, and a strange situation came up. I think we resolved it correctly, but I wanted to make sure.
My opponent, had both Billy Baston and Captain Marvel on his team. While he was in Billy Baston form, Brainiac was able to stink, and then on the next turn removed him from the battlefield with "Miniaturized Collection". Because of this, we assumed Captain Marvel was basically gone too since now there really was no way for Billy to change back to Captain Marvel. Is this correct?