When Een first formed the world, the spices and settings that caused it to take shape ran through it as a seam of magic that caused plants to grow, water to run and the world itself to spin. When the Crafters came to Mithrym they taught their devout followers to channel this magic into spells. This is called Cleric Magic. Other humans witnessed this though and began to experiment and craft spells of their own. This is called Wizard Magic.