Minor Right Pianus has some broken skills.

I was fighting both pianuses just a little bit ago.

Left Pianus would do the animations for the debuff and the seal, and they would both work fine.

Then I went over to Right Pianus, and his debuff animation worked, but the effect did not happen. Same with the seal. I don't have any video of it, but I spent long enough in there that I could tell that the debuff and seal were not working on Right Pianus.

 

Let's keep it that way, pianus is already one of the most annoying bosses if not the most annoying