[Boron]

My suggestions for IF ulm :
Give the black acolyte inquisition ability .

Make the black priest drainimmune . This is afaik not directly possible with modding . So give him just a sage bonus of 3 , which cancels out drain 3 dominion and leaves him this way in drain 3 scale with 4 rp .
Reduce his price to 120 gold , but don't change his magic skills .

Finally the black templar should get a small additional extra compared to the other beefed up ulm units because he is capitol only . So to make considering at least a small bless for him worthwhile he could get one of the following goodies :

-Berserk ( +3 - +5 ) because he is a zealot , a religious fanatic .
-Awe , because he is an impressive force .
-50% shock resistence . All black templars get a minor amulet of shockprotection as reward for becoming black templars , the elite unit of IF ulm .

I especially like the idea of giving them the 50% shock resistence . Ulm as a forging nation should be able to forge such a goodie cheaply , so their elite can be completely equipped with this item .
Because they are capitol only + require a lot of resources you probably really rarely will see more then 20 black templars . If their life expectancy against airnations is roughly doubled by this special ability would be imo a good thing .

Atm every ulmunit survives only 1-2 hits by a lightning spell .
The black templar would survive then 2-3 , with great luck 4 hits by an air spell .
That would at least not (almost) make them obsolete already on turn 5-10 .