User blog comment:Mich, Michele & Kuhla/Future Units Preview/@comment-128.153.210.91-20160114220231/@comment-128.153.210.91-20160115045546

@   68.46.107.10

6* Shida's regular BB has a 400% damage modifier. It should be relatively obvious that 7* Shida will have a higher damage output (excluding buffs) versus his 6*. However, it's not by a whole lot... only 50% difference (not taking into account the self 150% attack boost in his 7*).

@   Zephyrus11221

If you have both Zelnite and Shida, then it more-or-less eliminates the need for Zeruiah since they pair really well together. Not to mention they can both act as spark blankets (with 40 and 25 hits respectively).