Nuimancy
A nuimancer (or sometimes called nuivan caster or nuivan mage) could express influence over an archon called nui to perform arcane feats. Nui archons were found circling Legere in vast, interweaving currents called tahkshi. These currents existed almost everywhere in Legere, but some certain areas were significantly stronger than others. Nuivan casters held no source of arcane energy themselves, but twisted these currents to their will in order to create magical phenomena. This came at a cost, however. The more nui was twisted out of its natural, flowing state and bent into complex forms, the more it gave rise to another archon: havoc.
Havoc #
Havoc couldn't be directly influenced by any known means. Arcane scholars theorized many things about the true relationship between nui and havoc. Some believed nui somehow suppressed havoc in its natural flow, and havoc gained freedom when that flow was tampered with. Others believed havoc to be a form nui changed to when bent. While no one knew for sure how it happened, one thing was for sure: havoc was dangerous. The more concentrated it became, the more unpredictable magical phenomena surfaced. Excess havoc could manifest as anything, from a static-like sensation in one's back to an entire section of space having its gravity flipped upside down.
While havoc couldn't be removed forcefully, disperse naturally, albeit at a slow rate. Nuivan casters could harness more nui to spread havoc out over a larger area in order to dilute its effects, but that was the extent of their ability to control it.
Cultivation #
In order to bend nui, one needed to perform gestures with their hands while focusing on the flow of nui around them.
Grasping the flow of the tahkshi was the first challenge of any aspiring nuimancer. They would seek out particularly strong currents and sit in them for hours on end, practicing simple movements over and over while imagining the flows around them. These movements focused on grabbing a small handhold of nui and releasing it, like an arcane equivalent of rice bucket training. Since one had to imagine the flows somewhat correctly, having another experienced user around for guidance helped a lot.
Once they had familiarized themselves with what nui felt like, they never ceased to hone their detection of both it and havoc for the rest of their lives. The better one got, detection of smaller concentrations of nui became easier, and the amount of power one could squeeze out of a current increased.
At the same time, nuivan casters would master and experiment with a variety of different movements to spin nui into different forms.
Powers #
Nuivan mages wielded their power to combine ideas between two things to create a magical effect. This had quite a wide range of applications and was regarded as the arcane path with the most potential uses and magical outcomes. Each property of each object had to be manipulated differently.
Education & Spread #
Training #
Because of Havoc's volatile nature, nuivan mages were very careful when training students.
Literature #
Literature containing nuivan techniques were plastered with warning signs and not commonly circulated.