How does this work?
Okay, so first I play the Procession. I choose the Band of Misfits, and I choose to play my Band of Misfits as a Fortress. So it's a Fortress until it leaves play.
First time I play the "Fortress": +1 Card, +2 Actions. Now I'm at 4 cards in hand and 2 Actions.
Second time I play the "Fortress": +1 Card, +2 Actions. Now I'm at 5 cards in hand and 4 Actions.
Now here's where it gets weird. I trash the "Fortress". The Band of Misfits hasn't left play yet, so it's still a "Fortress". Because of this, it returns to my hand when I trash it, right? Is it now a Band of Misfits again, or does returning to my hand from play mean it leaves play? I assume it does, so let's say it's a Band of Misfits again. Now, Procession says I gain an Action costing $1 more than it. So do I gain a $5 (Because the Procession played a "Fortress" twice) or a $6 (Because the Procession played Band of Misfits twice and it's now a Band of Misfits again)?