Reply to good build up or wind down combos

So I have my launchpad mapped to imo perfection and my x1 99% complete except I have one free knob and button/trigger. I currently already have the drama/whooshing knob mapped using peak filter and reverbs. I was wondering if anyone has stumbled across a good combo of 3 fx for winding down or build up they wanted to share. I was messing with the bounce but couldn't achieve what I was looking for. Im happy to share my mapping once completed. Thanks!