Just use 2 of this on Genesect and you're golden. Alolan dugtrio takes too much work to build a nice bench, maybe if you are able to set up 3 or 4 dugtrios just doing defensive strategies, you would win the game no matter what....
Anyways, jumping back into reality, just Blower the tools and hit hard whatever is holding them. The sad part of the history is that we are going to play in a Field Blower meta, where no one can play nice tools and combine strategies properly, like it once was before rotation. Genesect hits low numbers and needs 3 energy to attack, Lucario Melmetal needs too much energy, they cannot afford to heal with potion and do not KO zoroark, therefore, they are going to lose to zorocontrol.
Finally, I dont think metal is going anywhere. Pokemon company has been trying to make Metalmons a thing in the TCG since solgaleo, dusk necrozma, magnezone, mt. coronet, and they were never able to reach this. First, with full offense, now with full def., but those guys are forgetting something: T1 kiawe = T2 vermilion GX 360 dmg = T3 Ho-oh hitting for 360. No metal deck can survive this assault, fire types hit high and fast enough to break any possible setup from a defensive weakness deck.