If I have a hero in battle and he has an enhancement or two that he played during battle, and if I play old Wheel within a Wheel and exchange him with another hero in my deck, what happens to the enhancements? I know Philistine Armorbearer has the ability to keep enhancements played on him in battle when he's exchanged, so it makes me think the enhs are normally either shuffled with the hero who was exchanged or they are discarded. There's nothing in the Exchange section of the REG that talks about this. Perhaps it's in another part of the REG that I missed.