Hmmm interesting, I am building two teams for this run which is sand team and rain team and I put garchomp of one my main sweepers. I already have a hazard setter which is my hippowdon with sandstream then following up my garchomp and excadrill with sand veil and sand rush respectively. I have magnezone for water and fairy coverage and two mons is weavile to counter psychic mons which generally OHKO garchomp since many psychic pokemon can outspeed garchomp has access to dazzling beam and also it has a good priority move, lastly any of my special attackers depending on the future battle (Gardevior, Alakazam, Lucario, Starmie and meowstic). The brick-break filler seems good since I have it on my weavile for screens and it restricted me from giving him choice band, so garchomp BB could change weavile moveset and add another good coverage for the team. I still have a lot of high-leveled pokemon but I am still new to team building so what you guys think bout just changing iron head for brick-break?