Talk:Obsidian Seraph Zenia/@comment-118.68.176.53-20150827074934/@comment-26297531-20150827111304

He's talking about the data-mine parameters. i think mich or someone has the blog called Detailed Statistics etc for units, you can find that "BB flat atk" there.

Anyway, there's a detailed explanation here https://www.reddit.com/r/bravefrontier/comments/2quqq1/mechanics_analysis_damage/

so the flat atk is just a small bonus addition to the damage calculation (e.g. 2000 atk + 100 bb flat atk = 2100 atk as base stat for further calculation during bbs).

As for Zenia's UBB, I think the best way is use SBBs for the 2 turns the 500% BB atk up buff is there (100% +500% + 250% atk up = +850%), and normal atk (100% + 250% x3 = 1050%)  the last turn of the UBB.. if vs solo boss tho, you can consider just normal atks all the way... higher dmg output.. or just SBBs 1st turn of UBB to get all the buffs (crit, crit dmg, element, conversion buffs etc), then normal atk all the way