So summary for Miru Farming
Team A: ALB(Hades), Dios, Dios, Dios(Ra), Dios
Team B: ALB(Thanatos), Dios, Dios, Dios, Avalon Drake
With passing, the Dios with Ra can go on either team, just need to coordinate when to pass.
Basically 4 elements: Green dual board changers, gravity or counter, direct damage, light shield.
This is what I have seen people do:
Team A: Liu Bei (Thanatos), Dios, Dios, Dios, Leeza (Gravity) or GG Astaroth (both have dragon killer)
Team B: Liu Bei (Direct Damage), Dios, Dios, Dios, Green Sonia (or other board changers)
I can make team A.
I think near all hyper is necessary unfortunately.
Edit: Another thing: Don't max skill Thanatos. A typical ALB team have 18-20 skill boosts combined, so a max skilled Thanatos would override Liu Bei's default skill after a couple turns. All the click team I've seen so far only need Liu Bei in the early rounds, so Thanatos at around 15 turns should become charged when you need it against Miru, but won't override Liu Bei's skill at other dungeons.