Talk:Umbra Halcyon Magress/@comment-26812555-20160514204950/@comment-26407503-20160514214542

No. Thats just overwriting the buff. BB and SBB buffs that are similar (ex: 1 unit def buff is 130% while another unit def buff is 140%, they will clash and you can overwrite the def 140% with def 130% depending on the unit who provides the buff last. Ubb mitigation and bb/sbb mitigation will stack. 75% ubb + 50% bb/sbb = 87.5% mitigation.

Mitigation uses multiplicative as the formula, not additive (otherwise we would take 1 damage per hit)