We recently came across a situation where it appeared that we 'may' have come across an infinite loop while playing the game. Plastic Man was in the line up and a player had played both Jervis and the Mind Control Hat. By using the Hat to play heroes from the line up and then copying the Hat with plastic man it seemed like it would just go on forever.
I'd like to hear anybody's feedback on this as we might have overseen a simple rule that would debunk this issue. The only thing I could think of was that even though Plastic Man could copy the Hat he would have little effect since the first 'Hat' hadn't finished resolving and therefore could only play other unused heroes/villains from the line up. Therefore it would also exclude him from playing himself later.