Khaimera offlane

How the hell do you actually kill him with his offlane aug? Bro has infinite heals, crazy burst, and can pounce on your face… I was playing Akeron and just got steamrolled even standing under tower and just doing what I could to get last hits wasn’t enough…

(I built magnify then tainted which ig could’ve been the issue? If so pls explain for a noob who’s trying)