Yeah, I’m mostly just scrambling right now - no room for theme! Settra gives lots of Tomb Princes and bonus ranks, so I’m filling out on those right now. I just got a Casket of Souls. I’m trying to the higher tier stuff as fast as possible.
I actually like the unit limits. A lot. I wish other races had similar mechanics for limiting troops. I actually much prefer battles involving a few high tier units and lots of low tier, rather than doom stacks - it makes the special units feel important. I might look at a unit cap mod one day.