[Neus]

So what I'm guessing is happening here is that it's starting out at LV 1. Being hit by an attack lowers it to LV 0, which makes it expire. Not sure if that one is a bug instead of just a consequence of how powering down skills works.

As for Fellel, how did you test it? As far as I can tell it works exactly the same way as Plisfa (and just before it, too) so if that's getting reduced then so should Fellel. Did someone have a skill that might have caused the attack to be ended early, like Bullet Barrier?