User blog comment:Stbk22/Possible Power up's/Techniques for then new group DxD/@comment-1359322-20141228030353/@comment-16281343-20150619151441

But then again, the point still stands. It has nothing to do with Mirror Alice's abilities itself. The only connection of the base form to the balance breaker is the demons coming out from the mirror, which is entirely based on her ability, not the Sacred Gears.

Even with the other subspecies Balance Breakers, the original abilities is still there.

While we're on the subject of Tsubaki's Mirror Alice, there's something I'm intrigued about that can possibly be the bridge between the difference of the abilities of the two forms.

In the Rating Game in Volume 5 when Tsubaki used Mirror Alice against Xenovia, Kiba said this line.

"—They got us! Her ability was different from what I had heard. Had she accomplished change and growth and attained a new ability!?"

This one can either be a plot hole or something to fill one out. I'm banking on the latter.