Hey, Jam. Check it out this Mega Gyarados team:
https://pastebin.com/UFssPj2Z
I made it to be as reliable as possible with knock off Clefable and Healing wish latias supporting the attacking trio + Terrakion checks quite well the most common setup sweepers right now.
I sent you the mega slowbro team and, NO, I am not Will I am, LOL.