Cheapest 99 magic?

Looking to go for 99 Mage and want the cheapest way, I have 55 mage atm.

 

Gatestones in dungeoneering, 43xp each and they are totally free!

 

You could run air orbs, it's slow as hell but you'll make money doing it.

 

Way i got 99 mage was alching. Cost me 13m from 80-99 and a couple of weeks.

 

Sub, what did you use to alch?

 

Gatestones, Humidify I think is still profitable on soft clay? Uhhh alching certain items... The ways are limited.

 

What can I alch though?

 

Alching is very cheap. You can alch all sorts of items, this calculator will help you choose items based on their current GE price:

http://runescape.wikia.com/wiki/Calculator:Magic/High_alchemy

This chart is fairly accurate and prices are updated regularly, but it may still be inaccurate at times because GE prices fluctuate so often. Double check everything on the GE before you go purchase in bulk.