The techniques which will be explained in this Runescape Magic guide will all get you 99 magic fast; however, every one of these techniques require a higher magic level, with the lowest level required being 55 for the High Alchemy spell. Since you need a higher level to use these techniques, this section of this Runescape magic guide should help you reach those required levels.
Begin by getting the required runes for the highest spell you can perform. In order to check which spell you can perform, check which magic level you currently are and look at the Magic Spell Book to see which spells you can perform. Then, choose the spell which you would like to perform, purchase a bunch of runes to perform the spell, and get ready to train. Wear as much magic boosting gear you can, grab a couple thousand runes so you can perform around two thousand spells, or more.
When you are all ready to train, head to west Varrock. If you do not have a Brass Key, go to the Great Exchange and purchase one, since you will need one to get into the shack located southwest of the Great Exchange, named the Edgeville Dungeon. Enter the small shack and go down the latter. Once you are in the lower level, which looks like a series of tunnels, run across the room where the Hill Giants are located and hide behind some of the bones or pillars located all around this room and begin casting spells on Hill Giants.
This is one of the best places to train to 55 magic for the High Alchemy technique or higher magic levels, since you can hide behind things, preventing the monsters from attacking you. Also, you will be able to collect runes, limpwurt roots, and other items, in order to earn some extra cash and runes to perform more spells.
Once you get to at least 55 magic, you can move further into this Runescape magic guide and continue on your journey to 99 magic.
On Page 2, we will go through the High Alchemy spell and how to get 99 magic fast. Then, on Page 3 we will explain how to use Ancient Magic spells to train to 99 magic. Finally, on Page 4 we will show you how to get 99 magic playing the Pest Control mini-game.