Sorcerers

The magic of the World, also known as the Arcanum, or the Music of Creation, is a vast blanketing web that touches every thing, be it a still stone or a furious hurricane. This natural magic is what the likes of druids revere. The creators and shepherds of this widespread arcane weave are the Gods, which clerics and other divine casters beseech for their power. Others may tap into the arcanum through formulaic theory, experimenting with precise tethers that can invoke the magic to act in a certain way they desire. These rigorous students are wizards. Sorcerers are nothing like anyone else, because while the arcanum can bunch up within a single person or creature, those that become sorcerers are made out of the raw magic in one supernaturally large knot.
As such, those that are sorcerers have this hyperactive mystic energy coursing through their blood, bones, every last fiber of their being. Oftentimes, the overflowing of arcanum pours to fast and violently into the vessel, and the sorcerer breaks, often with disasterous consequences. Those that have the immense presense and constitution to either embrace more and more magic power pouring into them, or are able to control themselves to stem the tide, mastering themselves to master their magic. The ability of spellcasting that sorcerers have is the reaching into their inner wellspring and willing an effect into being.
How sorcerers manifest can be for a variety of reasons. Some may have a family member that was touched by a paticularly powerful font of magic, and that has become a generational manifest. It can also be in very impactful event for an individual, such as being bestowed this power by a greater power, or exposure to supernatural cosmic forces. However it happens, one cannot go out and become a sorcerer, the power itself chooses the sorcerer. Whether or not it is fated is up to debate.
There are countless variations of sorcerer as there are countless forms that magic can take. The bloodlines that manifest with the most stability and room for growth are as follows:
Aberrant Mind. Whatever touched your bloodline to bestow you these capabilities was not of this World. It is alien, anathema to the fabrics of reality that everything is built upon, and as such cannot be remotely comprehended. You are a mild manifestation of this thing's physiology, one still tethered to the physics of the World. However, it has warped your mind into something that skims into the uncanny, with strange psychic abilities manifesting as the arcanum bends around you as if you were a strange gravitational well for it. This gives the Aberrant Mind sorcerer unparalled control over the minds of others, allowing such magics as telepathy, mind reading, creating brain blasting horror, and more. These sorcerers, due to the exceeding rarity of contact with the thing that morphed them, are substantially rarer than most other sorcerers, and it is a case by case basis on how they will act, either using their strange powers for the better, or bending it upon everyone else in their own self-serving goals.
Clockwork Soul. The Material World was constructed by the Gods as a realm of perfect balance between all the primordial forces, a balance that has been long and hard fought for. In order to facilitate this, a concept known as the Divine Order was created, and the World is built upon this predetermination. This can be seen in the preciseness of the movement of the moons and stars, of the turning of the seasons, all in one grand design that chugs along like precise clockwork. It is from this supernatural Divine Order that your power comes from, wrought as a catalyst to maintain this harmony. Some Clockwork Souls can also be made by an extended exposure to the Clockwork Nirvana of Mechanus, the outer plane of fundamental lawfulness. There is a greater calling to those that are born of the Divine Order, manifested on the World to maintain its status quo, and work against the forces of chaos that would disrupt the laws of reality.
Draconic Bloodline. Dragons are made of the raw elements of the World, having been here long before the World took its modern shape. It is unquestionable that dragons are the greatest and most powerful of all the creatures, and the suffusion of the arcanum within their bodies is perhaps the tightest packed. As such, those that emulate, or grasp a tiny fragment of a dragon's true power are still immensely powerful. How this comes to be can be an infusion of draconic blood, pacts with the wyrms, or even a dragon as an ancestor. This can manifest with no physical alterations, or with mutations such as scales, horns, and other features that blur the humanoid and dragon. Centrally, all draconic sorcerers and their tether to their bloodline manifests in unparalled control over the element that infuses them, such as a black sorcerer infused with acid, a blue one with lightning in their veins. This is the bloodline that is most sought out to be artificially undergone. The most famous draconic sorcerer is Nyvorlas, the only known Snow Elf, and a White Dragonblood.
Divine Soul. These sorcerers are known often as Favored Souls, or Chosen Ones. They are tied inextricably with a paticular god or other divine force, either chosen, or related by blood. Often these individuals are tied with a prophesy, either for the betterment of the World if their tie is from the Upper Planes, or the furthering of ruin if an evil God bestows the World with their foul offspring.
Lunar Sorcerery.
Shadow Magic.
Storm Sorcerery.
Wild Magic.