Any advice on best offense and defense team

Can I get any advice on which would be best possible combo for a offense team and best possible defense team,I know these aren’t great but it’s what I got, also which ones are with leveling up and which ones aren’t.

I would use Boldtusk, Tiburtus, Sonya, and Hu Tao with Kashhrek as your tank.

I would use them right now

And swap Bane for Hu Tao and Belith for Caedmon.
Hu Tao would swap with Sonya’s spot in this case.

To levelup
Red: Boldtusk, Namahage
Blue: Sonya, Valen, Gunnar
Green: Kashrek, Caedmon, Brianne, 2nd Belith
Yellow: Hu Tao, 2nd Bane, 2nd Hu Tao if you do not get any other *4 yellow.
Purple: Tiburtus, Balthazar

Not to levelup: Ranfeld and Prisca

Defense if maxed (or at 3.60), like @JGE siad :
Hu Tao - Tiburtus - Kashrek - Boldtusk - Sonya

Defense current:
just like @FraVit93 said:
Belith - Tiburtus - Boldtusk - Sonya - Bane

yeah i have been trying for 2 months now to get the 2 hidden blades i need to ascend boldtusk but i have had no luck , same with warm cape for sondra