When a wand component, and by extension a wand crafted with that component, excels at casting a certain spell, it often excels at casting closely related spells. A related set of spells that all have the same elemental or phase and that tend as a group to be exceptionally well strengthened or focused by wands having certain component(s) is called a spell set. For example, if a wand is crafted with a component having the elemental Air and this wand excels at casting one weather control spell, then that wand will tend to excel at casting all weather control spells.
Spell sets are very useful to wand makers. When crafting a commissioned wand for a mage who will be casting numerous spells that control the weather, it is sufficient to consider wand components that excel at casting spells in th
