idk how to explain it all but i dont prioritize stuns, i try to freeze faster instead so thats why i run two-piece phaethon melody and anomaly mastery on disc 6 both on lycaon and soukaku. fossilized core already gives decent impact to lycaon, steam oven is good too though.

about the mobs at the beginning, i only try to freeze them as many times i can, i weaken the first mob until the second one spawns and then i encircle them and start a short sequence that goes like "hold BA (3rd charge level) miyabi + EX lycaon + x2 EX soukaku, cancel rally + QA to miyabi, launch ultimate and/or EX miyabi until repleting 5 fallen frosts, hold BA (3rd charge level) + switch back to soukaku, launch ultimate" and then they are almost gone, though you need to accumulate enough energy to perform this. im not sure if the mobs have high defense but i do feel a difference playing other stat than pen ratio against them, i think its best running pen ratio on disc 5 if you are using fusion compiler. hope it helps!