User blog comment:LivesByProxy/Mastery Redux & Game Design Theory/@comment-24385282-20160122181002/@comment-26815373-20160122220636

Thanks! You hit the nail on the head. I'd like to see Riot adopt such a system (leaving the skill-trees for Diablo and friends) but I doubt they will... ;c

Also, I'm editting / tuning the power level of these as we speak. Onward and upward.