Why does Kalista have a Blood Moon skin?

The original Blood Moon skins were from [issue 22 of the JoJ](http://leagueoflegends.wikia.com/wiki/The_Journal_of_Justice:_Volume_1,_Issue_22), where Akali and Shen were performing a play for the Ionian festival. It's the reason why Kennen does not have a blood moon skin, but Kalista has one.... Why?
Report as:
Offensive Spam Harassment Incorrect Board