Talk:Eldritch Rocker Haido/@comment-30905905-20161231101450/@comment-27076522-20161231212700

ATK down works differently to Mitigation. ATK down reduces the enemy's ATK by a flat %, mitigation reduces the enemy's damage by half.

They stack, but if the enemy uses a BB that deals 600% modifier, mitigation would make the modifier 300%, but 40% ATK down would only reduce it to 560% modifier.

Barriers do take mitigation and unit DEF into account. Shields do not, so that's why barriers are better.

You don't get 'double mitigation' because the damage won't reduce like double mitigation would, but you still reduce damage, which is good.