Confirming the blueprint

"Good point, we should add the head then too. What will our mana storages be?" Eldrian asked and Two didn't have an answer. Runes made use of mana, they couldn't act as batteries. 

The use of the capacity rune was with the hope that it would subtly increase Eldrain's body's mana capacity. Outside of that, a loop was simply a nice form to attach more paths to. There wasn't more to it, it could also have been a star or anything else- a loop simply had the benefit of not having limited points to connect to. 

Continuing on, the two narrowed down their plan while ignoring the problem of mana storage for now.

They modified the skeleton blueprint until it would function properly as a mana network, allocating mana to where it might be needed and storing massive amounts -hopefully- in the mana storages. Thanks to their alterations it looked more and more like some weird robotic skeleton.

Still humanoid in form, but not quite human (or elven, in this case).