That's not exactly trueAlso, if your main issue is with Normals, Psychics, and sleep, Tradebacks just exacerbates those problems. The biggest winners are Amnesia + coverage Hypno, sleep Lax, coverage Zam, sleep Persian, Surf bull, and Amnesia Clef. It's a fun format but it doesn't really address your concerns.
RBY with tradebacks is actually the only RBY tier I've never played (I've won Stadium and No-Sleep RBY tournaments before and since I saw these formats being mentionned in the thread, I have to ask people to stay away from these forever), but on paper it actually does improve some of the issues that have been mentionned:
- Hypno gets interesting for sure, but keep in mind that unlike Slowbro, it gets bodied by normals while asleep (and even Zapdos). I guess non-rest sets could be a tough thing to face once Chansey is gone but then it's a lot more crippled by paralysis, and if you use something like Hypnosis + Amnesia you'll have coverage problems. I don't see Clefable being an issue at all since Hypno and Slowbro will do a better job at using Amnesia. Having set-uppers like Hypno will definitely make people use FishLax more than ReflectLax, which will decrease the usage of said Reflect Lax.
- Alakazam getting Thunderpunch improves its match-up against Starmie and thus will make it less likely to end up in the current psychic fishing scenario, getting the games more dynamic. Also, having the option of running Ice Punch means it will be difficult to use Seismic Toss, so players probably won't try to play out Zam dittos as much as they do now, which is currently quite a dumb one, so you're solving part of the lead game issues with this new Zam
- Giving Hypnosis to Persian is great because it will give you an extra reason to use it, and having more Persian usage means a Reflect Lax/Chans power decrease
- Giving Haze and Ice Punch to Gengar will give you more reasons to run it, increasing its usage and thus decreasing the Wrap users usage
- Giving Growth to Jolteon will give you more reasons to run it (it's still hard walled by Rhydon anyway) and having another good fast mon like jolt could put Wrap users under more control
- Surf Tauros is not gonna be a thing since it doesn't OHKO Rhydon and is a roll after Body Slam, so you'll stick to Blizzard especially for Egg, Zapdos, and the freeze chance. Also with all these new set-uppers and fast mons maybe we'll use Tauros for something else than opposite Tauros, woo-hoo
- Obviously LK Lax should be banned in a format like this, but Snorlax should be kept.
This is all just theory obviously, but on paper tradebacks seem interesting. I hadn't think about it but it's definitely worth trying (maybe create a ladder for it just like it was done for Latias in DPP), also the fact that we haven't been using tradebacks in RBY is probably purely out of the laziness our ancestors had about learning in new tier (and the longer you wait the harder it gets). It's way easier to just try playing with tradebacks rather than going for multiple complex bans or S rank bans to, and if it ends up not working we'll have a scientific file about it
This thread might be going somewhere and I'm looking forward to further input on this