Interesting attitude to approach a list with in an open forum generally reserved for obtaining help with a deck. Here's what I think:
- The most glaring weakness of your deck is the fact that every single one of your evolved pokemon -and mewtwo besides- possesses a pokemon power or body. You completely lack any way of dealing with cessation crystal (no windstorm, nor even any way to remove your opponent's active pokemon, like cyclone energy, reversal, or warp point), and thus simply fold to something like raieggs.
-For a quick stage one deck, for all the scotts and castaway you play, you lack enough simple draw. You're playing 4 transceiver but not a single adventurer or scientist? Odd choice. And while we're at it...
-You play no tools, but do play a castaway. It'll only grab you another supporter and a basic energy. There's dozens of cards out there that you don't play that would be infinitely more useful. A copycat would help. Steven's would be great. The aforementioned Adventurer would work with the energy discarding strategy, or the supporter discarding strategy with Banette EX.
-2 PETM seems like not enough, especially when you want to have 3 separate stage one lines (at least) going at any one time.
-For a powers-heavy deck with low HP and no way of getting at the bench, you're going to lose the gym battle to cursed stone decks, and that'll rip you apart too. Again, raieggs, an incredibly popular deck, as well as Stantler varients and Politoed variants, play at least 5 stadiums, if not more. 4 of those stadiums will be cursed stones. The others will likely be something along the lines of battle frontier, which hurts you too.
-Other banette decks rely upon high amounts of disruption (reversals, ER2, gym locks with houndoom) to deal with metanite. Without them, not only does metanite outpunch you, but it can freely sacrifice castforms if you do happen to get going quickly. Once they have their first metagross up, they'll get three prizes in a hurry. Since you don't play rainbow energies, you can't give yourself the damage counter banette EX needs to shady move in order to OHKO a metagross, and so you'll be trading 2 prizes for one, at best, through most of the match. And you'd better pray hard that they run neither a ray * nor a sceptile EX d.
It is fairly clear from your post that you're not really looking for suggestions on improvements for your deck; rather, you've essentially challenged the broader community to find the flaws in your "archetype" so that you can , presumably, argue them away. It's a valid way to think about your deck, I suppose, so you can start with the above, and the summary: your deck folds to the two most popular decks in the format, and without any significant disruption or way to protect yourself against cessation crystal or gyms, you'll have difficulties against anything else that does run those things. I can see this having serious issues with Salamence d decks, anything with steelix EX, anything running a safeguard pokemon, Stantler variants, etc.
Good luck,
Jake/Dendro