User blog comment:Linathan/Unit Spotlight: Valkyrie Archangel Griel/@comment-26186382-20150624130610

I need to call you out on this, the Def down Debuff. So there's 3 Buff/debuffs that do a similar thing. Def ignore, Weaken, and Def Down. A lot of bosses are resistant to Weaken, so it's better to use Def Ignore. However, a lot of harder bosses, like Eriole/Tesla in Atharva, can remove Buffs from your units, like Defense Ignore. But a lot of bosses can't cure themselves of debuffs. So in reality, some situations are suited for Def Ignore, others are better for Def Down.