I would like to know lowering the option 10.6 ESF for casting in armor would greatly unbalance the game. I have a player that likes to play paladins and wants to wear Full Plate armor as thats what he has come acustomed to. He would like to use the champion out of Combat Companion. What are some of your thoughts on this?
Look at the
Transcend Armor spells on the
Faith's Shield list. They start at second level and go from there.
Just as the character is unlikely to be able to wear full plate starting out (due to maneuver modifiers and a cost of 5/* per rank for maneuvering in Plate), he is also unlikely to wear it when starting out and casting spells.
Eventually he will get to the point where he can wear the full plate armor.
If he starts off wearing just a metal breatplate (AT 17, ESF 30, MnMP -15, MxMP -90, MsP 0, QuP 10), he is going to have a larger maneuver penalty (-90) starting off than he will a casting penalty for ESF (30). And the lowest level Transcend Armor spell will reduce that by 10 to a 20 (it takes the 12th level Transcend Armor to reduce it to zero).
I would strongly urge against combining different methods of reducing ESF, as every method other than the spell will be usable by every other caster in your setting, and that can lead to unbalancing things (Mages wearing mithril chain armor).