The Kinds of Magic

Spells, or what we call, Magical effects, cannot manifest in the world without a conduit. The Conduit shape, or ability to shape itself also change the produced effect.
When a magic user pushes magical energy into their bodies, they use themselves are conduits, Like prism glass to light, making a magical effect come out of the other side, its called Prism magic. And Its divided into two categories:

Prismatic Magic

Arcane

The casters of Arcane Magic are using the powers of the planes to fuel their magic. This power is called "The Weave" and it is the power of creation itself, conjuring a fireball is calling forth the Plane of Fire, while rising the dead is calling forth the power of the Shadowfell. Those Arcane maguses use powers beyond the reach of mere mortals for their incantations. With the right Ingredients or "focus" instrument to help them connect to those planes. Magus casters are: Sorcerers, Wizards and warlocks*. This type of magic is sometimes called sorcery or wizardry. Some races such as Elfs have a greater affinity to cast Arcane magic, even from birth. *Not all patrons are happy to gift the power to control the weave to their servants, most warlocks are diviners, casting spells that are given to them by those greater beings.

Divine

Diviners, sometimes called Thaumaturgists, are attuned to the power of a greater being. Their sheer zealousness and love for an entity of great power made them one of that Entity favourites. And so, it bestows part of its power upon them giving them divine energy to cast into their bodies and let out as what we call: Miracles. As long as the connection with the Higher Being is kept, the Diviners can keep drawing power from their master. The conduit needs to be strong and able to do so, or it might run out of power, for the day, or if pushed to do divine magic of higher power, the conduit might sever its ability to change some or all magic for the rest of its life.

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Inner

Inner Magic is the magic if oneself life power and sheer will. This kind of magic is sometimes called "Innate Casting". Some monsters and animalistic creatures have it. Bards learn magic only by the sheer will of their inner power to create music and sing. Monks who use "Ki" are practically Inner casing using their own life, this can be true even of some bloodline sorcerers. Unlike Prismatic Magic, Inner magic users are the energy and the conduit, all in one body. Inner magic may become stronger with the practice of the body and will.

Manifestation

In a rare occasion where you could see the Prismatic magic at work, and not just the caster, you would see a line of magic energy emerging from the place of power the caster is using, and then hitting the body of the caster. This is ethereal energy is hidden from most creatures who live on The Material Plane. But normally, without seeing the threads of magic, you will see the caster speak, move and maybe use some components, and from his body- magic will spur.