User blog comment:Degritone/Imad, the Tethered Soul/@comment-26044269-20150205042204/@comment-25364408-20150205144714

Well, it's enemy based, so using it on, say, Ashe wouldn't get you a ton of MS, while using it on, say, Rammus would get you a lot.

With percent health runes, the percent health mastery, and no passive scaling or other health tunes/masteries, it's an extra 586.6 damage on ult, so that's over 1100 AOE that isn't GP's ult. I could make it do a total of what it currently doe, evenly distributed between anyone caught and increase the max rank cool down.