1. Knock off is now 40 BP and still gets the 1.5x boost.
2. Gale Wings now makes talonflame's flying moves always move first in their priority bracket (not +1, its neutral but outspeeds all neutral threats with flying attacks).
3. The Ice type resists water and ground types, and takes normal damage from rock types, while the water type takes super effective damage from bug and normal.
So heres what I feel about these 3.
1. Knock off doesn't need nerfing back to its gen 5 status. Knock off is overcentralizing now, but it should still be threatening; it needs its place in the metagame. It limits some pokemon, but it gives niches to others in many cases, such as bisharp. Meanwhile mega stones still exist, it isin't that hard to switch into knock off nowadays. I think eliminating knock off hitting hard will keep it having a niche, since its not all that weak, and it still can knock off useful items.
2. Talonflame is a bitch atm, and its really kind of unfair. I don't really like the fact that it can beat other priority users like azumarill, but it should still have priority to be able to have its niche as a whole. Therefore I think making its flying type moves always go first in the common priority bracket, zero, gives it its niche of revenge killing and checking sweepers while not being as absurd at doing that job as it is now.
3. Ice needs a buff, and one of its main issues is taking normal from rock types. Meanwhile using edgequake is one of the most risk-free coverage uses in the game, which to me is kind of unfair. One of ice's main issues is weak to stealth rock, making almost all users of this type useless, so I remedy that by making it neutral to rock. At the same time water is one of the best types in the current metagame, and it makes sense for ice to resist it tbh so thats what should be done. This will also hopefully give offense better azumarill checks, and maybe make kyurem-b a little better (if its broken we can ban it, but i dont think a slightly better defensive typing (still no ice stab) and no longer having weakness to stealth rock will make it broken) then it already is for offense. This will mainly make countering many water types much easier. Ground type being resisted goes back to edgequake, while rock hits normal damage and ground hits NVE to ice to give it the niche as beating ground-type edgequake abusers not named excadrill. Water is also way too good defensively, and bug is one of the worst offensive types. So there we go, bug type moves have a better niche. Stuff like x-scissor on terrakion becomes much more useful than hitting psychic types. Also we can take normal, one of the most useless offensive types in the game, and give it the niche of beating up on one of the best typings in the game. It also give the azumarill another weakness to hit it on, making it easier to beat in general.
Stealth rock nerf is stupid, Idk why you think you guys have a point here. GF nerfed SR this last gen with the defog buff, and tbh I don't really think that it needs further nerfing since its not that good anymore. Sure you "need" rocks for many teams, but that applies to whether or not its easily removed or not; its an opportunity to apply quick pressure to the opposing team and shapes pokemon battles as they are. Thinking this is unhealthy is just a straight line of thinking, since you are just taking a passive aspect that can make the game more complicated and eliminating it citing that its overpowered. Without stealth rock we would just get a metagame without that aspect of complication, and meanwhile pokemon like zapdos and mandibuzz would completely lose all their niche. Volcarona would also shoot straight up into ubers, and talonflame could follow. Stealth rock is overcentralizing to its users, yes, but better distribution could fix this if its really that bad, but tbh its not. Say hi to azumarill for offense and tell me SR is overcentralizing to its users rather than water resists being overcentralizing because of BD azumarill. And really, stealth rock is overcentralizing to its users but it has good users, terrakion being by far the best of them being able to run scarf RK sets and having taunt to stallbreak along with good bulk, and it can also be a fighting type that can beat bisharp and mega mawile (if you pack EQ). There are so many good stealth rock users with niches its not even funny, so I don't see that argument either. Nerfing stealth rock into a gimmick would be nearly impossible, you either nerf it to it being not very good and the above happening or you keep it being very powerful. You either need to pack hazard control or you don't, there is no in-between for teambuilding when it comes to stealth rock in general even if its uniform all around. There is no getting around this, this means that SR will either be powerful and centralizing or a gimmick that is useless. This doesn't even come to mention the unholy terrors that can come from the item called focus sash, as it can literally rip apart the current metagame in seconds without stealth rock in place. Stealth rock stops breloom from consistently putting something to sleep, it stops unburden hawlucha from sweeping offensive teams w/o priority 10/10, and it stops every pokemon from having a COMPLETELY foolproof way to live a single attack in any circumstances period, which to me is just stupid.
SR nerf boils down to this:
1. It was already nerfed due to defog
2. It is overcentralized to its users, but it has many viable users, and if you still think that is a problem we could just change the distribution.
3. It gives many pokemon niches in OU, such as starmie (post-aegi), mandibuzz, zapdos, etc.
4. It prevents many pokemon from going from pretty good or not-so-good to banworthy in seconds, such as volcarona, talonflame, hawlucha, thundurus-i, dragonite etc.
5. Focus sash would become the most overcentralizing item ever, being able to be used on virtually anything to guarantee multiple hits on almost all opponents and sweep teams without priority.
6. You can't nerf SR itself, since you either need defog support or you don't; it will either be very powerful or a useless gimmick. If its worth it it is OP, if its not it isint, which is why saying stuff like "rock types should get rid of SR" wont work since it comes at no opportunity cost.
tl;dr SR nerf is pointless since it removes niches, makes new uber-worthy pokes, would make focus sash ridiculous, and it would still either be great or useless.