Board Thread:Questions and Answers/@comment-25294051-20150524201240/@comment-26021614-20150525062616

From what I understand is that the buffs will only apply to the units after you activate them. So for spark damage, your Feeva will not get the buff; if the spark occurs because of an attack involving Feeva and another unit's attack that does have the buff, the damage from Feeva will not be buffed but the damage from the other unit will. Please don't quite me on this, however, as I am not sure.

On additional note is that sometimes the buffs have a delay. I'm sure you've seen the delay on Zelnite's BB Gauge increase, wherefor you can active Zelnite's BB/SBB and use another unit's BB/SBB and that unit will get the BB Gauge increase after it uses its BB/SBB. Therefore, that unit will not get the BB drop increase buff from Zelnite's SBB on that turn. The same goes for other buffs, however some buffs do not have delays, such as Dilma's defense ignore, yet on the contrary Zephyr and Fei's defense ignore BB/SBBs do have the delay.