I was wondering, a lot of my colleges require mid-year reports, I know that my counselor will be uploading it on her common app, but do I have to mail a physical copy of my mid-year report to the schools? Thanks. 
The counselor’s copy is what is needed. Nothing from you.
Just making sure, so I wouldn’t have to send anything of my midyear and final transcripts to my colleges right? My counselor would scan them and upload it on her common app.
You don’t. The school sends the official report(s.)
Right. Remember, your counselor has been through this a million times before. She knows which schools require which reports, and when.