DemonMaster
A.K.A. Fenhorn
Spiritual trait gives potency to disciple units (just like arcane for arcane units) that INCREASES the speed of xp gain, it's not the requirement for that. Priests will still get xp without it, just a bit slower. Potency is a relatively new addition, but passive xp for priests has been there for as long as I've been playing it, which is quite a while.
NO, NO, NO! I am not talking about priests, I am talking about disciples, acolytes, etc. the LOWEST clerical rank in FFH. As long as I have played this game they have neither been able to cast spells, or gain XP until this Potency promotion was introduced (and that I do not know when it was). I do know that Upgraded Clerics (to the 2nd Tier unit in that line, they are called various things, Cultists, Ritualists, etc.) always has gain xp over time.
Perhaps there is some bad wording here so I am going to take this again: I am talking about the unit "Disciple of Leaves", the lowest ranked Clerical unit for the Follower of the Leaves religion. I am NOT talking about disciple units in general and the unit "Disciple of Leaves" do not (without the Potency promotion) gain xp just because they exists, or at least have not done that in past versions.
Let me know if we are going to take it from the top again, I have nothing but time ...
PS
Sorry if my post is written with a touch of irritation. It does not happen often.