Talk:Nyx/@comment-24.231.123.84-20190225002206/@comment-25254386-20190322130751

^Nope, "ignore" is essentially what it does. E.g. 100 Ferrite armor is normally a $100/(100+300)$ damage reduction, but against Corrosive damage that only 75 of that 100 armor is actually ignored, leaving only 25 armor to reduce the incoming Corrosive damage - $25/(25+300)$ damage reduction.

The real kicker is that the +75% bonus is then also applied to the damage itself, multiplicatively with any other health bonuses Corrosive has. So 100 Corrosive damage against a target with 100 Ferrite and some Flesh health will actually deal $100*300(1+75%)/(300+25)$ damage to the Target's health.