User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-27337786-20160518005518

Krantz UBB boost Atk relative to Def 150%, how would that work? How can it use more than 100% of the units overall def for atk?

Only thing I can think of is that it uses the units def (with buffs applied) all 100% of it, and then takes another 50% from the same def pool and adds it to the 100%.