>>21659643>acting like Fairies are Hydreigon's biggest problemStop that.
The biggest issue is that shitty Speed tier, followed by being left behind by OU power creep even in its own generation. I'm pretty sure using 1760 stats for tiering in Gen V would've sent Hydreigon to UU anyway. Which, all things considered, is actually an upgrade from where it was, being a mediocre Pokemon trapped in a higher tier is much, much worse than being totally dominant in a lower tier.
Sheer Force and at least 15 extra points in Speed is the easiest way to go about pulling Hydreigon back to OU. Fairies aren't something to be overly worried about, every Pokemon has weaknesses.