Quote Originally Posted by MeeYow View Post
Having one magic and one physical tank is absolutely pitiful design when your bosses only use one type of buster. Flatten/Flare breath was a much better design.
I also posted in another topic (Yes, I tend to post a lot...but my work is boring ) some design idea where you could "lock" a boss in one type of busters, so that you'll adapt your strategy depending on the tank you have intead of the other way round.

You can also simply fight two bosses at the same time, with one being magical and the other being physical (It could have been done with the Oppressors). Having them switch periodically would also force tanks to swap, which would offer something else to do besides popping your cooldowns at the right time.