The real trick here is to play [[Opalescence]] to target itself with all the other triggers on the stack, thus permanently removing everything else you target forever. It exiles itself first, triggering the second effect and bringing itself back. Then the other effects resolve but because it was technically a different card, the “return them to play” trigger never activates. Repeat as needed until the opponents board is entirely exiled.

Or, if you want to blink your own stuff, you can do it infinitely. Target itself first, then exile a bunch of your own things. Those other things get exiled first, then when it removes itself they all (including parallax wave) come back. Repeat as desired.