He is a cheater, in the future blot out their name because it goes against forum rules to accuse people of cheating with their username shown. Send the screenshots to support to make sure the dude gets banned
No he’s legit. I too have a rank 5 with less than 500k hero rating.
this shows 3 matches of that mf , which mean you beat him once . And that dude ended all 3 fights in around 20 mins , 100% hp , are you also cheating