The negotiation with Mony and the others lasted a whole half a month before it finally concluded. With the full cooperation of the speakers, they precisely grasped the desperation of the geometrical civilization to obtain Magic Power and reached an agreement to exchange a thousand tons of Element 7 for ten kilograms of Magic Power in the initial phase.
That's right... just ten kilograms of Magic Power!
Although Magic Power is a type of energy, it also has mass, albeit incredibly light mass that is only observable during a state transformation.
Because energy is basically just a quantity of matter, a more microscopic form of matter, which is why mass and energy can be converted into each other, they essentially are no different.
For instance, one kilogram of electricity, using the mass-energy equation, can be easily calculated to be about twenty-five billion degrees, which can allow an interstellar spaceship to travel for about an hour.