Add to the rule “Fusion”

As a daily action, an Atom may make any two Reagents Fuse with each other, as long as both Reagents have a Heat grater than their Mass, and the Atom making the Reagents Fuse has a Heat greater than half of the Mass of the more Massive Reagent, rounded up. When an Atom makes two Reagents Fuse, half of the Mass of the more Massive Reagent, rounded up, is subtracted from the Atom’s Heat. The older Reagent involved then gains the Protons, Neutrons, and Electrons of the other Reagent, and the Heat of the older Reagent involved becomes the difference of the sum of the Heats of both Reagents and the sum of the Masses of both Reagents, divided by 2, rounded down. The newer Reagent involved then ceases to exist.