Made a thread about this in the wrong forum section, so making a new one here.
I've tried to land mewing lullaby on dark elementals and skeletons. Never works.
Out of curiosity I went to sky and used mewing lullaby on light elementals, and lo and behold, the sleep effect landed.
Why is this? Cait Sith is a light based avatar. It would make more sense if the sleep effect from mewing lullaby was light based. Any chance this could be changed? It wouldn't be a nerf either, obviously, since summoner's already have two dark based sleeps: Shiva and Diabolos.