Fields

All fields interact in some way, but not necessarily the same way in all locations in space-time. All examples are for earth-like universe unless stated otherwise.

Gravity
Changes velocity of particles in other fields.

Any positive value excitation in this field will attract all particles of other fields as time progresses forwards.

Mass
Any positive excitation in this field is considered "normal matter".

Can be directly changed into electromagnetic excitation.

Electromagnetic
Any positive excitation creates a photon with velocity.

Can be directly changed into mass excitation.

Magic
Excitation can be converted to alter any field's properties or excitations.