The second scenario involved EX roulette yesterday in Neverreap. Warrior tank with two Bards as DPS. The tank tried to do that massive pull before the first boss. Divine Seal heals over time wore off with only one enemy dying, and the tank was taking so much damage even with the heals over time on him that I thought I couldn't safely DPS. Then I decided I'd try to blow open a strategic window by going into Cleric Stance -> Swiftcast Holy and Assize. It backfired. Tank took huge damage and ended up dying a split second before Benediction went off.

What should I have done in that situation?

-> Just stick to heal mode anyway?
-> Maybe used swiftcast Holy without going into Cleric Stance?

And finally, probably the most important question: Should I REALLY be using Regen that much? I refresh it all the time during fights, but I'm starting to think doing that is a bad thing (it's probably why Titan went after me).

(This is my last post on this subject, I swear.)