User blog comment:ElleRose/Cris, the Mana Blade/@comment-4087140-20121106105059

The "percent of max mana cost" part is a bit confusing. For example, Enhanced Hyper Blade at rank 1 costs 50% of her maximum mana, and deals bonus damage equal to 20% of that cost, which is simply 10% of her maximum mana. Therefore, why not say "(+ 10% maximum mana)"?