User blog comment:Lord Loss/Discussion of the Week: Statuses/Mechanics/@comment-24893216-20140502175534

I think that new status effect for weapons that decrase monster's defence would be good idea.It will be called "acid" or "corrosion"(i don't know which name will be better) and It will affect only one part of monster but resistance to this status after applying won't increase. If hunter want to apply this status effect quickly he should hit one monster part because it cumulates on one part For exaple when hunter cause some acid damage (that is not enough to cause corrosion) on head and he begin to hit wings instead head he will apply acid damage from beginning(old acid damage will still be on head) so it's good to hit only one part.These weapons  will be created from monsters that can decrase hunter's defence like devilijho or chameleos.It will not only incease damage taken by monster but also decrase resistance to other status effect and let weapon cut through part more easily.It will also have special properties on some monsters(especially on these which can increase defence).For example zaboazagiru won't be able to create ice armor on corroded parts.