Can a Mage be Both Communion Slave *and* Master?

[Jazzepi]

Sombre said:
What if you set A and B to hold for one turn, then cast slave?

Will they still cast spells each round because they are before the master, or not?

AFAIK the only thing that matters is not /when/ a particular unit becomes a master or a slave, only that ~in a given turn~ if a slave comes before a master in turn order, he will be able to cast.

So I'm 99% certain that a slave that becomes a slave from a matrix before the battle, or one becoming a slave on turn one, or on turn 20, will all be the same way. The next turn after they become a slave, and every turn after that, all that matters is that they come before whatever communion masters you might have.

Jazzepi