My better team is mostly fire. Lava, Lancia, Leon (ughn i know, but I have squat ready to replace him hence vargas getting pushed). I really wanted to swap out leon for the longest time and siren, but I had nothing that would fit there at all. Got the blacksmith (needs more levels still), but I found he sparks for crap with the others and doesn't produce many crystals. Trying to spark with zegar is an exercise in frustration as well and he goes down if anything looks at him funny.
I'm still trying to build other viable teams though, since I can't control what I pull via gem or honor and mono team bias due to ore/stone and leader skill is hard to pass up. Yeah, I also have Atro, 2 alma, and Rameldria, but they aren't ready yet. I have squat for water really only having stya. Lightning is a similar joke with Zeln, Weiss, and Ezo. Earth I have god pike, Leore, Nemia. Dark is the more recent magress, mifune, and oboro.
So yeah, I think I'm going to get stuck soon. Managed to get into the champion teir at least though. /waves tiny flag
You have waaaaay better units than I do.