They don ' t , it ' s naturally that good . We just select the best plants from nature and grow them , there ' s stuff growing wild all over the world that would knock your socks off if grown properly . <| sep |> On Ashet using magic without tools will catastrophicaly damagecurse your body , at least for all civilised races . Some beasts and monsters have evolved to do a particular kind of magic without destroying themselves . Short of that you need some form of magic crystal to channel the mana . The classic approach has it as gemstone , specially treatet , cut and set to do fairly specific but most powerful types of magic . Further drawback is that most of the time you need very pure crystals , limiting it ' s users to the rich and powerful . A more recent form is to grind the crystal into dust , removing any contaminations with special solvents and creating a magic ink with which you can draw arcane circlesrunes . Fairly simple to learn basic runes and effects like light but for more advanced effects a lot of study is necessary alike to rl programming , everyone can make hello world but a game engine is something else entirely . Once placed most circles can be used again and again and with only basic knowledge of aura necessary , so while the creators need more knowledge any odd joe can use it afterwards . Limitations on who uses it is on who has enough money to pay for the ink and for even more powerful ones , stones . Commercially used for traps , enchantments and clean lightfixtures . Unique to humans and secretly developed and used by only a very few , are arcane tattoos , where the power of the effects and the variety depends on the complexity and size of the pattern . Again , gemstones can be employed to enhance the effect and cost is a factor to consider as well as available space on the skin and willingness to wear a tat . The bird people of the dessert , the blood elves of the forrest and the orcs in their mountain forts have their own unique methods as well , dependant on culture , religious views , crystal availability , hostility of the environment and their capabilites to manipulate aura triggering device to use mana and control crystals , using aura directly to use magic is the same as using your body to do it , ie very bad . Due to cost and greed only royalty , nobility , the rich and high level clerics use magic regularly but having contact with magic or its ingedients is fairly common throughout the population .