The power to use supernatural powers through a medium. Not to be confused with Powers Via Object.
The user can use various powers based on the usage of various form of medium, either through absorption or experimentation, granting them a variety of abilities.
- Black Tom Cassidy (Marvel Comics)
- Weiss (RWBY)
The difference between Power Via Medium and Powers Via Object, is that users of PVM are the source of the power(s) themselves, while users of PVO get their power(s) from the object.