I am not suggesting a one ability clause. I am suggesting a 1 regen clause.I think I've played a couple hundred games on ladder this month; I have several accounts at 1500 or above.
The council is probably in an annoying position, as I see it:
1. OM councils view their job (appropriately) as developing and maintaining a fair and competitive tier.
2. Players are demanding a more fun tier, even if the current tier isn't uncompetitive.
3. You've gotta ask, at what point does this tier just become AAA 2?
I'm not running a single Regenerator Pokemon, and I'm getting wins with fun sets; you certainly don't need Regenerator to win.
On the other hand, I am running some teams with duplicate abilities, like Mold Breaker or Levitate. I don't think these duplicate abilities are overpowered or uncompetitive, so I don't see 1AC as a good choice from the competitive standpoint, and I think 1AC brings the tier too close to AAA.
2AC seems like a fine midground from my experience.
I could see a Regenerator ban as an interesting alternative to maintain a fun tier that is distinct from AAA, though I don't have evidence to advocate for such a ban. I think the only compelling argument could be found in AAA posts that argue double Regenerator led to unhealthy matchup-based stalemates or losses at team preview.
Anyway, I've been having more fun this week than last week. I'll continue making new teams and laddering. I think this has been a really enjoyable OMOTM, and I might try AAA once it leaves. I haven't played that tier in a long time.
Here's my favorite team this month: https://pokepast.es/7082a019538ad4c2
The whole ability clause in the first place is entirely about regen. The only other one I could possibly see stacking matter is unburden.
I am suggesting we not even limit other ones to 2 as that is a pointless casualty to nerf regen specifically and a fruitless nerf to regen which is still broken.
Council has put themselves in a hard position in that the test has not gone far enough to combat regen spam.
Regen is not like other abilities and it should not be treated like other abilities. Regen vest and ice scales are the only ways to mitigate broken special attackers (other than running blissey which is even more boring).
If you doubt my calls that regen is broken feel free to try klawf tusk + av slowking galar meloetta or av slowking muk Which I use and think are broken cores.