Information and Notes.
Hello, this is my first guide ever, I use this mastery page and it suits me very well with AP champions. I suggest 21/0/9 for the best sustain, mana regeneration and damage output during the laning phase. Please note that there's no defense involved into this, I use this for Veigar/Syndra and they have good abilities for defense and offense. Please also not that in the laning phase that the enemy your against might have some Armor/Magic-resist but that will not allow you to be the odd man out.