@tashepard looks liiiiike evocation is the most common, while specific shapes (blades, orbs, spiders...) and firey materials (lava, burning ash) are sometimes conjuration, with a few misc effects (animating existing fires, wings of flame &c) being transmutation
@tashepard looks liiiiike evocation is the most common, while specific shapes (blades, orbs, spiders...) and firey materials (lava, burning ash) are sometimes conjuration, with a few misc effects (animating existing fires, wings of flame &c) being transmutation