Whenever Evelynn uses her W, everyone in the game will get the effect audio and visual effect of having it cast on them. This affects both enemies and allies, regardless of Fog of War. It does not matter what you cast the W on, be it champion or monster. The W can still only be activated on the intended target.
Post your PBE bug reports here: something not functioning as intended? Store is broken? A champion's ability is not working? etc
Need help? Read our [bug reporting guide](http://community.pbe.leagueoflegends.com/c/bugs/CF5EEDC8FF5AC1A896F517E2C7AE4650C472807F-how-to-report-bugs-on-the-pbe).
Comments about things you don't like or suggestions for improvements go in Feature Feedback.