[5.5 Abyss] 4* Duo + Trio Clear (4* Weapons)
You can cut Iansan from 12-1 and 12-3 too, but 12-2 is impossible without 5 characters or 4 characters + elemental resonances
You can cut Iansan from 12-1 and 12-3 too, but 12-2 is impossible without 5 characters or 4 characters + elemental resonances