[thejeff]

Even without empowering, you can use Ulm's other mages to get some of those buffs.
1/4 Black Priests have SE for reinvig through Summon Earthpower and Invulnerability
Any of your astral mages can do Personal Luck & Astral Shield.
You might get lucky and get Fire Shield out of a Second Tier. Phoenix Pyre?
1/4 Fortune Tellers have Nature for Personal Regen & Barkskin.
And of course a Sabbath Master Count can do Soul Vortex.

It's a hassle, since you have to retreat the masters once you're done buffing and then try to gather them again for the next battle.