Thread:AverageAmasian/@comment-205.254.147.8-20150826162229/@comment-26455864-20150827193357

UBB stacking means that UBB buffs stack with regular (BB/SBB) buffs. For example, it the UBB gives a 300% ATK boost, a 140% ATK boost from a BB/SBB will stack with it for a total of 440% ATK buff.

For critical hits, if the critical word appears, all of the hits will be amplifed by the critical multiplier, which is normally 50%. The crit rate cap is 70%, and you can buff crit damage by using units such as Ultor, Reis, and Griff who all boost critical damage by 50% on either their BB or SBB.