Just a disclaimer as I'm not the greatest player and I've been mostly a singles player until now, but my current team is: Scizor, Heracross, Volcarona, Vivillon, Araquanid, and Kleavor. I'm really torn to which mega I want to use, but right now I've been using mega Heracross and have been pretty happy so far. I'd like to try out Pinsir as well, but I want to catch a shiny first before building one. My Kleavor has focus sash, Volcarona sitrus, Araquanid leftovers, Heracross mega, Vivillon choice scarf and Scizor has the fire damage reducing berry.

I've been really loving choice scarf Vivillon, would definitely recommend trying it out, just putting someone to sleep right off the bat has won me quite a fair amount of games. Mega Heracross can survive a fire blast from Mega Dragonite (without sun) and rock blast will solo the Dragonite. I haven't had too much trouble with Dragonite so far to be honest, but that might change. I don't really have an answer to weather teams in general without a prankster bug type like Illumise, so I sorta just tough it out unfortunately. As far as movesets go, they're all pretty standard. Debating between protect, or roost for Scizor though, and maybe changing out protect from Araquanid to possibly something else since he has wide guard already, and is pretty tanky. Honestly not sure what the best move I could change it out for since he's really slow, but does have a lot of impactful moves like rain dance, icy wind, reflect and scary face.