The power to torment evil souls.
The user can create and control foreign material that does not exist in the familiar world. For example, being able to generate and control supernatural matter that can be used to i.e: defy physics or create energy that has a completely different form and/or quantitative properties, thus defying natural science. This could also extend to different appearances, like a solid object having seemingly natural kaleidoscopic colors.
In general this power can range from just material of alien appearance to material that have abnormal properties to a normal perspective of concept. This power could be also extended to reality defying levels via the properties of said material. If done correctly the user can reach Nigh Omnipotent levels of abilities and there are nearly nothing the user can't achieve via these mediums.
Not even a little