Just the Ancient Dragons. The only other non-Terra raid boss I can really do is Pete and I use different shields depending on my class and strategy.
It could be good against Hyperius, when he does that first nova. But I don't know how to do Hyperius so take that as you will.
I intend to stick with the inflammable and alkaline bee shields for Pete. It would nice to have a Pyro/caustic bee shield all in one, but then that would make Pete way to easy. I won't be playing Hyperius yet, since I know I cannot scratch his health at all.