It's aight, but I came up with an idea between when I logged off and when I went to bed. My character's tribe/clan came across something that would later be dubbed 'Silverlake', and upon drinking it, the members found themselves living longer, being healthier, and now able to command their bodies to alter themselves at will, rather than needing something to build off. On top of this, it allowed them to learn to use magic easier. Perhaps Silverlake is a massive pool of nanites, having gathered in one spot on the glove after decades of movement? It doesn't need to be a further-developed plot point, I just want some explanation as to why my character could so easily comprehend magic and alter his body without it's use.