Maerlande, is that your actual casting order for the Slaves? (Comm Slave 1st round, then Cast Spells from round 2 onwards). If so then it’s far from optimal, as reverse communion Slaves don’t need to be Slaves until the 2nd round, and you don’t get the benefit of the S-boosting until the 3rd round, which means you are limited to S1-spells for rounds 1+2. (Edit 2 - apart from that one Slave positioned after LotNS goes off)
Edit - And if you are giving the Slaves a free spell pick in round 2, then chances are they will go for PLuck before they get it from the Master. Of course I’m not sure if your “Cast Spells” means you script “Cast Spells”, or you are just denating the point at which you start scripting non-communion related spells. I’m guessing the former as otherwise you would have mentioned what spell you cast on round 2, since the Slaves are unboosted at that point.
So IMO you are far better off doing what I often do and script BodyE or Luck on 1st round, then Comm Slave 2nd round, then Cast Spells from round 3 onwards. This way you are afforded better protection on your mages in the 1st round (Comm Slave isn’t going to do much against counters). And you have the option of saving a Master slot on PLuck by getting the slaves to group buff Luck instead (although this is not a no-brainer, as mages grouped in the same sqaure have downsides. And don’t forget Magic Duel is AoE1)
Oh and you can also think about making that first Master a Slave as well, that way he gets the buffs from the second master (but be aware he still gets the fatigue from the second master like a regular Slave does. So he has all the positives and negatives associated with being both Master and Slave)
Edit 2 - Actually, since you’ve got LotNS in there (didn’t notice him at first, hence the 2nd Edits), you’d be better off again my making the LotNS guy your first slave, scripting him for LotNS (R1), then Comm Slave (R2), then all your Slaves and Masters will be +1S from round 1. Seriously Maer, your mage and casting order is so sub-optimal, that it makes a MM+Efficiency junkie like me feel nauseous!
Disclaimer - If anyone doesn’t understand the above then you might want to check out the free Dominions classes that Maerlande runs at his local education centre, Monday-Friday, 7pm-9pm. (although please remember to do what the teacher says, and not what he does :))