I know this post will be shut down for insulting CG, but tbh it's just bad design.
I've had HMF since release and I have never lost an attack. Always first everyday in my shard.
People beat me with their HMF cos I always have to climb back from around 8/10 but I've always got atleast 2 spare attacks a day.
As with every new legendary release in this game, they always tend to be way overpowered.
Dont get me wrong I know they are legendary and supposed to be strong but its unbeatable unless the opponent has the exact same team or with the same legendarys, which just leads to mirror matchs for years.
Soooo boring.