My non physical skills (ei: silence and sleep skills) used to read out "*Player* was silenced" when effective or "It will not work" for ineffective. Throughout the process of making my game something was changed so that they read out like normal physical skills. So even though no damage is caused, it will read out "Miss! No damage!" before reading out whether the state change was effective or not. I've tried copying and pasting skills from other projects to make sure I have the same settings, copying and pasting Scene_Battle from other projects to make sure I have the default settings but it still won't work.

What did I change and how can I fix it?

What kind of scripts are you using? (' o ')

you just asked the magic question. I looked through my scripts and realized I'm using Rockleedude's Custom Battle System but only for the purpose of having a Critical Hit sound effect. I deleted it and it went back to normal.

So I guess now the question is, how can I change Rockleedude's script to get rid of it affecting my state changing skills, or where can I find a script that is purely for giving me a sound effect for critical hits?

Well I don't really feel like modifying someone else script to produce a minor feature.
So this should do it for you.

Perfect! Thank you very much!