>>34499364Have you ever played another game competitively? Everyone's favourite Koffing-based forum has plenty of resources for BSS, down to links to top performing jap blogs.
Here's a simple formula:
Mega + Z-move user + Sash/defensive pivot
With this you can bring 2 megas to the preview and still have healthy diversity.
Anyways, looking at the usage stats on the official website is the bare minimum you could be doing. If you take some of the top threats from there and copypaste them into your team, you should be able to make up a good deal in any skill-deficit that might exist. There's also room for fun stuff like mixed Z-Solar Beam / HP: Ice Blaziken destroys most of its good switch-ins; Fake Out + Sub Lopunny can switch in on a Mimikyu Swords/Ghost move and beat it heads up since Sash has gone down in popularity (part of the reason why Gyarados is doing great again), while being able setting up a Sub on Speed boost Blaziken's Protect turn.