User blog comment:Wallo/Champion Concept : Quinox - The Forgotten Guardian/@comment-71.126.167.211-20121108022714/@comment-95.223.157.110-20130316161019

"Quinox gains 0.5  / 1  / 1.5 armor and magic resist for every 1% of missing health. "

For every PERCENTAGE of missing health, so the maximum MR/Armor u could get is about 99 (for 99% missing health since at 100% missing health u'd be dead)