Talk:Perseverance Jewel/@comment-27478813-20160102190326/@comment-26292709-20160105165430

Tthe 'fill BB gauge when attacking" part means it fills your BB gauge once when the unit attacks, and the same goes for any other spehere, LS etc that has the same effect (filling BB gauge when attacking). So for this sphere the unit with it on will get 2 or 3 BC added to their BB gauge once when they do a normal attack.