I'm theorycrafting a bit rn I think Zama-C won't be that good. Volcarona, Boldengo, Gliscor's Spikes, etc. will all make Zama-C far more manageable I think. As will cores like Lando-T + PhysDef G-King, G-King x Zapdos, etc. Its not like I'm running this stuff specifically for Zama-C either. Gliscor's Spikes are a premium and will fuck over Zama guaranteed, Zapdos and G-King have good synergy, Volcarona is good sweeper and wincon in its own right that will fuck over most Zama variants, and Boldengo in general is just a very good Pokemon. Sure Zama-C can tech some coverage, but it can't run ID, BP, Roar, Rest, Behemoth Bash, Stone Edge, and Crunch on the same set
I actually think the inital metagame will be very balance heavy. Volcarona and Gliscor are very nice tools for balance to have, espicially Volcarona since that gives Balance a very potent wincon. The only questionable freed mons are Sneasler and Roaring Moon (and Bax / Shifu but it looks like those mons will not be freed), which I think will be quickbanned, but once those are out of the way (and maybe Oger as well) I think this could very well be the best version of the Gen 9 metagame.
I actually think the inital metagame will be very balance heavy. Volcarona and Gliscor are very nice tools for balance to have, espicially Volcarona since that gives Balance a very potent wincon. The only questionable freed mons are Sneasler and Roaring Moon (and Bax / Shifu but it looks like those mons will not be freed), which I think will be quickbanned, but once those are out of the way (and maybe Oger as well) I think this could very well be the best version of the Gen 9 metagame.