I really wouldn’t recommend Miko, I had that exact Class Build last month, and you’re gonna realize how lacking Miko is.
Hamaya+Entity will barely compare to Rubric, most of the time the enemies will just leave the pillar and stop taking damage, Omikuji duration is so short, you’ll barely get one Rubric out.
Gohei is spammable, yes, but it’s also incredibly weak, most of the time you’ll just forget to use it.
Kagura Dance… as nice as it sounds, is just a buff to your Magic Dealing teammates, you’re stuck dancing while it happens.
Carnivory is also in a bad place right now, 20 seconds of a summon that has no movement, a very small line range attack and pretty small damage for what it asks, it also demands that the enemy be killed with Chortasmata for it to summon a plant, meaning if there’s any flying enemy, you’re gonna have a bad time.
Hopefully in the future they do improve Miko+Exo, but for now, it’s in a bad place.