Memory Crystals (Part 1)
The second array stored inside Solus' Mouth of Menadion acted as an external circuit that sapped the excess energy of the partial cores. The temporarily weakened fragments managed to match with the others, forming a perfect sphere.
While Solus and Lith worked on the power core, the others used Menadion's Mana Well technique to strengthen the Light Cocoon array.
With each blow of the hammer, their mana passed from the Fury into their Forge which stored and amplified the mana by mixing it with the flow of world energy that the magical metal constantly drew in.
A second strike of the hammer would recover the amplified energy and change its signature into Lith's. Once a Fury was close to being overloaded, its wielder imbued the accumulated mana inside the Cocoon, bringing the power core one step closer to completion.