Yeah, just tried Iron Faith with Drain 3, got 1 RP Black Priests, quitted game !
First I don't know if the fact that IF Ulm is affected by drain is a design decision or a bug, in the former case it should be documented (currently the Ulm overview tells it's unaffected..)
If it's abug it should be fixed

, else if it's a design decision, it means that you have to take neutral or magic scales to play IF Ulm (unless you really want NO magic at all...

). I'm not sure the new units (even if powerful)restore balance for Ulm in that case.
Can a dev explain the choice ?