User blog comment:Death of Hell/Some Ways to Level Up in Brave Frontier/@comment-26336535-20151205220435/@comment-26336535-20151206012806

Well, I found Bariura and Beiorg ridiculously difficult compared to all the other quests ("I can't OTKO this.... Oh no") so I assumed people would be relatively high level, enough to hold at least 4 7*. Besides, you were suggesting specific units as well. I was also making describing these squads and providing what roles they had so people could replace them with their own units if they didn't have the one I mentioned, and then provided alternative units, such as Mifune.

I still hold to my opinion that all you need is a Hadaron friend and you can kind of make the rest of the squad with standard buffs (ATK buffs, BC/turn, BB fill rate), as that's basically what I had here, and it works. Hadaron seems to still skip ST skills if he's the only one left, so even if it doesn't OTKO because not all your units are 7*, you can still B/SBB the next turn to finish off the boss.

Though I didn't realize that this was for people below level 200 (how was I supposed to know ._.), so, sorry bout that. But again, I suggested alternate units of lower cost, and you could just sub in earlier evolutions of units. I'd prefer my method since you only need one squad to be able to do all three and still OTKO, and since it's OTKO you don't need to worry about death.