I don't mean to tell anyone their job or anything, but Helmet Druddigon in OU rn is phenomenal. naturally outspeeds most of the fatass stall pokemon(pex, ferro, hippo), if you run a little speed you can catch clef, blissy, and corv, it gets taunt and glair, if you run full def you can tank a couple hits from lando and glair back,
mega lopunny is already powerful on its own, but with an adamant nature and power-up punch, it wallbreaks to the max! With triple axel, it can tear through even the most defensive walls such as tangrowth and amoongus! with webs support, mega lopunny us guarenteed to do work!
Ferrothorn sets up all of the hazards. Bulky druddigon phases and takes hits with rocky helmet.
Zapdos also phases and kills opposing ferrothorn.
Set up Fini or scarf moxie krook come in lategame to clean up.
I got some Mega Heracross Trick Room Heat https://pokepast.es/06980e1be0788ef9 for you and Blunder man
Mega Heracross gets such good coverage with rock blast and bullet seed and is a menace while TR is up. Scarf Hydreigon can also clean up late game if you have not revealed it to be scarfed, or can get sneaky kills early game as some people do not expect it to be scarfed.