User blog comment:BadFish95/status debuff cleansers/@comment-77.194.134.206-20151112203606

Every single status ailments cleanser in the game can also cure status down debuffs, but cannot negate them. And it's not a bug or anything, it's supposed to be this way. Here's an update from last year :

https://www.reddit.com/r/bravefrontier/comments/2m1w6n/holy_crap_old_units_are_getting_a_revamp/

"Any unit that cures status ailments will also be able to remove status down effects."

Also read this : http://www.bravefrontierforum.net/threads/can-all-cleansers-cure-debuffs-like-atk-def-rec-down.64519/