New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
no, only if when you switch, it's now your initiative. If that's the case, then since it's your initiative, you can interrupt and get your hero back.
But then, do you have to use an interrupt in the brigade of the new hero, or can you still use enhancements of the original hero's brigade?...or possibly both?