I was originally going to post a mow squad, but I couldn't find something I was satisfied with, so I'm submitting an old team I've had in the back now.
Tl;dr is - you're focusing on victini's cb vcreate wiping holes in any teams that do not have the pokemon named heatran, tyranitar rotom or screens.
Adamant nature because I think its a crime you're unable to snipe clef from full otherwise, and because it makes sure things stay dead, tangrowth is your physical wall, elec resist, yada yada, scarf tom here is really interesting as its helped patch up a major weakness of this team; hyper offense mu, specifically webs. it + lopunny usually helps carry victini to victory, lopunny is also here since its the most splashable mega and is the actual late-game cleaner once victini has nuked everything to kingdom come, torn-t is the universal filler pokemon that takes all special walls.
Would I ever take this team to a tournament? naw do I think its the single most fun team anyway? yeeee legitimately, a lot of fun and a massive noob crusher to anyone who doesn't really know what to expect from this team.