I didnt use any premium units either, I used event units.
the only AW I used is probably spica, since AW katie 2% def is a bit meh. never used a heavy so bernice AW doesnt affect. didnt use saki so AW saki doesnt affect either. but up to you. whatever you use is really just whatever floats your boat. like I said before, subjugations are a good time to test and find out what your team is lacking, and working to improve your team by working on that weak link. I personally feel that having 2~3 mages (or maybe 2 witch 2 mage) should be sufficient to dps down everything without needing a heavy. then again I had claudia (princess/duelist) to absorb the damage from the black wolf riders and killing them before they could do much damage to my ranged.
there are 10,001 to achieving something.
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this is my early game setup. I have a lot of rather unnecessary units including a shuuka (advance guard, located at last melee spot behind prince) and a Len (rearguard, top right ranged unit). Len is replaceable with an archer/witch. Shuuka can be removed to place another ranged up top.
my team:
and then, my end-game setup: (only 2 units changed)