what the heck are my Communion Slaves doing?

[Zooko]

alexti said:
so if you want your communion slaves to be active, script the master to cast some spells and then attack (or do anything else but casting). I still couldn't make communion slaves to advance though.

Err, what are the other options? "Stay behind troops"? I always figured if I told him to stay behind troops then he would cast spells anyway (as long as he was behind troops). Oh, does that mean *immediately* behind troops? As in -- follow troops around? That would be interesting..