OM/Pet Mod is a pretty binary system I'm afraid - unless it has a really well defined reason for including an expanded dex (i.e. Balanced Hackmons) it'd go into Pet Mods.
Ask in the CAP forum then because this isn't where the request should go.
STAB (and most move-based OMs) has to do with native movepools clearly existing. It’s not like Cloyster can only use Ice and Water moves, it still keeps Rock Blast. So it’s also consistent to say it gets its native movepool (which includes the restricted Shell Smash) plus STAB moves, but would be unable to learn a restricted Ice move it does not normally get like Glacial Lance. The restriction only applies to moves learned through the metagame mechanic.
This still doesn't seem to be consistent with why AAA and STABmons behave differently. Native abilities exist just as well as native movepools do. Note that on-cart Pokemon can only legally have certain abilities and similarly can only legally learn certain moves. Also note that the same ability/move can be legally shared by multiple Pokemon and you can hack illegal-on-cart abilities and moves onto on-cart Pokemon. Heck, just like certain abilities are coded to only work on certain Pokemon (e.g. Gulp Missile), so are certain moves (e.g. Hyperspace Fury)! Abilities are arguably even more native on-cart than moves, as all legal abilities of a Pokemon in a certain generation, including future legal abilities, are fixed on release day until a new form is created for that mon mid-generation, while Game Freak easily releases events mid-generation that distribute Pokemon with new moves (e.g. V-create Rayquaza) on existing forms. So, if "movepool restrictions are within the realm of allowable tiering due to the existence of native movepools", why aren't ability restrictions due to the existence of native abilities?
Restrict lists are undesirable and should only be used if they’re necessary for the meta to function. If the meta concept can work without a restricted list, it should for the sake of simplicity.
As far as I know, one of the oldest Other Metagames is Balanced Hackmons which preceded the room. You can find it's beginning in 2012 here https://www.smogon.com/forums/threads/gen-v-balanced-hackmons.3463764/, otherwise there have definitely been informal OM's but nothing classified as it due it (the room) being a creation later on. There have always been people that seek to spice up their game with unique rules and I don't see this not being the case for even earlier gens.
Thanks for the information. It's as I thought, and it makes me want to ask another question : Is it possible to suggest OMs for generations prior to 5th ?
Generally we want metagames that have to do with the current generation, this comes down to primarily interest levels.
I wouldn't say it is impossible, but I would say it isn't likely, this all comes down to interest levels and division of interest. Having multiple generations available at all times on top of the current generation will lead to division in players. This can be seen in the drastic differences between the most popular metagames and the less, example being AAA had over 31,000 battles last month whereas STABmons the third most played Permaladder was barely over 5,000 and this problem isn't exclusive to OM's but instead followed by regular tiers. Overused had over 1.2 million battles last month whereas Underused only had 130,000, barely more then a 10th (and only gets drastically lower the lower the tier is). Also, the idea of bringing back old mechanics into new OM's is more in line with Pet Mods from my perspective. Balanced Hackmons only gets away with having Mega Forms available due to it being hackable in-game (whereas Z-moves, and moves in general not hackable aren't usable).
The problem is that there isn't a need for it, you don't see a lot of people asking for them, and it would just divide the current communities if all those formats that didn't exists in previous generations received official support now, we should focus on creating resources for the current generation, most of the non-permanent formats barely see any activity on their threads when they aren't OMotM, and I doubt that retro versions of those would even generate enough activity to be worth making resources for.
If you're looking for past-gen different content, may I suggest looking at Pet Mods? It's not Other Metagames, but it's still different from the base game and has a good selection of retro-gens style content!
So, if I were to suggest a metagame where you could choose where a pokemon's base stats go, that would be rejected immediately?
It depends on what you mean by the part I emboldened, since we do have existing OMs that swap base stats around. The best place to post your ideas for feedback is the Metagame Workshop :P
You can challenge people to it, is in the past generation section, but it doesnt have a ladder.
I am not sure if this is the place for your question since I am pretty new to the forums, but the reason you can't play Gen 3 Ubers is because it isn't currently a playable format. The only case in which you could play Gen 3 Ubers is to send a challenge to a specific person you want to battle against.
Thanks a lot for the link and the info <3
