[Belcarl]

Yes communion slaves can still cast spells.

I have sacrificed ordinary Theurgs with Pythium recently when my MP opponent managed to kill most of my Communicants with flyers in an earlier battle. Script cast communion slave, cast spells worked.

Since it was stated that TC doesnt have much astral mages (my memory is good but short) the risk for mind duel should not really be huge for them. Simply dont bring an astral mage into battle. Communion master/slave matrixes takes care of your battlefield boost, if you want to go down that path.

Could anyone confirm if Light of the northern star gives +1S to enemy mages to? If so, it's news to me.