http://blog.livedoor.jp/freedomduo/archives/cat_10191.html

On here is the link for a spoiler made officially by Bushiroad. It leaks a grade 1 skill in BT17 that is translated:

"G1 / POWER: 7000 / GUARD: 5000
(R): Your VG's <LB4> skills can be
activated even if you have 3 or less
cards in your damage zone".

So for all you LB 4 lovers out there (including me), you may now begin to squeal in excitement.