Brave Frontier

Yeah, you only need one of the Halloween units for the level 4 dungeon. Everyone can freely access levels 1/2/3 and still get one of the orbs.



While true, the boss itself isn't really that hard if you can plan out the HP thresholds and, if need be, have a damage mitigator.

EDIT:


RIP Any reason to do Halloween dungeon other than for collection purposes. Although doubling up on BC/BB spheres seems hilarious.

Arena is not a thing? People who participate in this even can get 3 double normal atk spheresand have 3 diff units to generate bb