This is the team I used to get me to rank 1 on the AAA ladder
https://pokepast.es/b7c9cbaf761f18b9
The main focus of the team is to take out dark-types (mainly Roaring Moon) for Mew to come in late game and setup to sweep but a few things to note.
Forretress and Misdreavus purpose is to get sacrifice themselves to take out pokemon that's faster than Meowscarada and Inteleon who in turn will weaken/Ko slower pokemon like Corviknight and Swampert.
Inteleon is a 94.1% 2 hit KO on Swampert after rocks with Weather Ball and Meowscarada have a chance to 2 hit KO on Corviknight after rocks that's not Fluffy or Intimidate with Knock Off so early rocks works well.
Lucario is for Roaring Moon, Zamazenta, Chien-Pao and Scarf Latios if Forretress or Misdreavus was not used to kill them. (PS Garchomp may be Queenly Majesty so be careful using Espeed there)
Mew sets up on most Bulky pokemon even bulky Roaring Moon.
Mew can in some cases deal with Roaring Moon if you lose/eat your item
im gmt 5:30 add me on discord so we can see when we are available
its subr0za