Ultima and Omega Weapon:

[Goldenboko]

Another way to get Break Damage Limit is killing Nemesis, and if a weapon drops, BDL will ALWAYS be on it, and it will have 3 slots usually, but on rare occasions, it will have 4 slots.

Chances are if you can kill Nemesis you already have a break damage limit weapon. I can't imagine sitting through all of his HP without one.

As for the rest of the creations Jimmy87, most can be taken care of quite easily with some leveling, a break damage limit weapon and Attack Reels. Or, the Magus Sisters.