User blog comment:Makbloo/Grolk Kar, The Great Wyrm, Kog'Maw's Daddy/@comment-4948122-20120613095822/@comment-60.231.71.93-20120613124102

4. it really isn't the same as sion, to get to 10 creep kills at the start you'll lose at least 60 health from the ability alone which is 1/7 of his health making him real easy to bully out of lane and thats playing passively. This innate would give 5 armor and magic resist and 2.5 AD and AP at no cost and armor and magic resist is considered more useful then flat health.

Maybe if his natural scaling is reduced on damage and taken off armor but then he'll take higher priority for harrassing then anyone on the roster.