Talk:Mysterious Heroine X (Alter)/@comment-35229167-20180801222704/@comment-35523605-20180806203416

It just reduces their star weight to 0 on top of slapping down a Charisma buff. It doesn't make it impossible for them to get stars, though. X herself has a star weight of 9, so all it does is even the odds somewhat. There's a good explanation on how that works down below by Hikaru, if you're interested. If there's a Servant you really don't want getting stars like a support Caster or something like that, it's pretty useful.

Not sure how it would work stacked with a star absorption skill, though. Haven't tried that before.