I think I would want Caed, Tibs, Boril, BT, Li Xiu. Or maybe swap BT and Boril positions. So if it were me Id focus leveling Li Xiu and Boril. Not a fan of Wu on D, Chao is ok. But since the defense has no real plan of attack you generally want defenders that don’t require a strategy. Kiril, Rigard, Scarlet and Colon are also good on D. I would def want one of BT or Kiril for their buffs. When Im not sure I just set a team for a week or so and see where my cups bottom out at on average when Im not playing and then try the alternate team and see who best protects my trophies
If you want a team that is currently all 4/70…hmmm Maybe try Caed, Tibs, Kiril, Scarlott, and Wu.
Rigard, BT, Kiril, Caedmon, Scarlett - I don’t think there is much advantage with a double colour in defense, unless you don’t have other options. Caedmon has less defense than either BT or Kiril, but Scarlett is even squischier - she would be better paired with Boril, I think, when he is finished.