So upon seeing the prompt this week, I instantly thought of something I figured no one else would and so I figured might as well participate for the fun of it. Garchomp is a super fun and honestly not terrible mon, bright powder+sand veil is legal for some reason so its a mon that can just win games on its own if things go your way. Even without misses, its speed tier, stabs, defensive typing, and bulk are all useful enough where it legitimately will contribute things on a game to game basis. Hp allows its sub to always survive timid charcoal trans heatwave(iirc) for free ass set up(this hp is also a bit more than enough to avoid 2hko from band zyg tarrows), and the speed investment is only 248+ instead of 252 because I outsped up to lando-i but the last ev felt more useful in attack than speed since Im not worried about chomp mirrors lol, rest just an attack dump to give it as much power to start with as possible so you have something to beef up with sd. Togekiss redirects certain things for chomp to allow it to get the ball rolling easier sometimes before you have to start fishing for misses. It also is just a super good mon right now, checks a lot, and brings utility out the ass. Outspeeds tran so instead of you eating an eruption it just doesnt get to move, max hp and def dump with the remaining evs. Kart is an incredibly good mon so I added it next mostly because its kart. I finally decided to add my sand setter next, and settled on gigalith because I had decided I wanted to use eject button on my setter and I figured gigalith was probably gonna be the best user of that and it gets good move wide guard to actually bring utility to the table after it burns its free switch. Evs are just max hp, hit an arbitrary jump point in defense and decided it was good, and then dumped the rest in spdef. I added rillaboom next because not only did it actually fit amazingly well, but it is a mon that should be on most teams due to the sheer amount of role compression it brings in terms of checking things as well as enabling many strategies that would otherwise be far worse if not entirely invalid, this one included. Its superpower to bop kart and kyube while still hitting tran because that felt way better than wood hammer and ground move here. Final mon I decided on was dracozolt, mostly because it also abused sand, happened to bring resists I liked, and because I really like paleontology and think this gens fossils are hilarious due to what they are a reference to(even if what they are referencing itself isnt funny at all D:). Also offensively checks kart which is cool because everything else either only defensively reacts to kart, doesnt beat kart, or is kart and it becomes coin flips. Spa evs ohko 4 hp zyg, speed was just me attempting to creep finis outside of sand because I didnt think of anything else worth reaching for, attack dump to make bolt beak nuke like its supposed to. General strategy is simple enough, I generally try to trade up early game with dracozolt, using rillaboom and/or togekiss to enable it doing so. After hopefully going up in mons, I simply try to leverage the remaining pieces I have to put chomp in a position to get up a sub and either start throwing out attacks or racking up boosts, while trying to maintain sand so it can benefit from its pretty nice chance to dodge any given attack and generate free turns. Proper usage/timing of gigalith's ebutton is imperative to this teams success, proccing it too early or for no reason usually throws all momentum out the door and then youre left on the backfoot for the rest of the game. So like lead sequence is usually lith+zolt, pivot lith out into one of kiss or rilla, whichever is better, while zolt clicks the appropriate button. Proceed to use which ever mon you switched in to enable zolt taking kos until zolt goes down, at which point you get out of flow chart mode and start thinking about how chomp is gonna win. Heres a replay I just got from ladder(where I didnt follow the described lead sequence but it was because the lead choice I made won on the spot) that shows both of the sand abusers going in on a team mostly without the help of sand:
https://replay.pokemonshowdown.com/gen8doublesou-1373287034-xrmbwndolvipzh8fyibtqqfx8y4hom4pw . I hope that if anybody tries the team the enjoy it because I think abusing evasion like this can be a really fun(ny) way of skewing risk reward waaayyyy in your favor in scenarios you should have no business being able to do so in.