Crimsonwood 2

I am za Terminator wif ze goggles. ZE DO NAZING!

Maybe when they bring over the talking boss thing from KMS they can get him to say Asta La Vista Baby!

Yes, but the combination is unique.

For instance, suppose a room blocked by a fiery door dealing an unavoidable 10k hp environmental damage (which Magic Guard is useless against). To remove the barrier, someone must go to the other side and use an ice-based attack to kill/break the thing generating the fire.

That's a really obscure situation. Something like that would be terrible. If the PQ was full of stages like that it would be a total failure. Waiting for specific classes to turn up so you can do the PQ is one of the worst things about a PQ.