[asteram]

How one would get energy from this setup, assuming it works:

The pyramid is rotating. The pyramid has a magnetic field, therefore the rotating pyramid creates a rotating magnetic field.

Surround the rotating magnetic field with a coil of conductive wire, e.g. copper wire. The rotating magnetic field will generate an electrical current in the copper wire, i.e. a generator. This is how all electric motors and generators work.

the end.

And it's saddening that I have to explain something so ubiquitous and commonplace as this. Do you people not have even the basics of knowledge of how your world works? For shame.