Reaching to find some kind of buff trend in stat boosts

Stat buffed pokemon:		(I avoid naming moves that are homogenous in design, like Brave Bird's gen 8 distribution which is now given to all birds, Power Whip which is given to essentially all snake or very long whip tailed pokemon + grass types shown to have vines in anime, Hydro Pump to almost all surf users of monster body shape, etc)
	gen 6:
Nidoking	+10 atk												Buff Mirrored Nidoqueen
Nidoqueen	+10 atk												Buff Mirrored Nidoking
Clefable	+10 spa												Buff Mirror Wigglytuff
Wigglytuff	+10 spa												Buff Mirror Clefable
Vileplume	+10 spa				Strenth Sap as a move			2 abilities		Mirror Bellosom
Poliwrath	+10 atk				Movepool overhawl; Drain Punch, Superpower, Close Combat, Darkest Lariat, High Horsepower,
						Liquidation, while previous best Fighting STAB was: Brick Break
Victreebel	+10 spd				Strenth Sap as a move			2 abilities		Buff mirrors Vileplume
Bellosom	+10 def				Strenth Sap as a move			2 abilities		Mirror Vileplume
Azumarill	+10 spa
Jumpluff	+10 spd				Strenth Sap as a move
Beautifly	+10 spa									2 abilities			Buffed to mirror Butterfree/Beedrill
Exploud		+10 spd				Boomburst as a move				2 abilities
Staraptor	+10 spd									2 abilities	Mirror Unfezant??
Roserade	+10 def
Stoutland	+10 atk				Sand Rush now also Sand immunity, only noticable for Stout/Herdier
Unfezant	+10 atk									Mirror Staraptor???
Gigalith	+10 spd				Sand Stream in gen7
Seismitoad	+10 atk					Possibly the buff is related to Nido's or Poliwrath, both very similar in statistics
Leavanny	+10 spd									Buff Mirror Scolipede
Scolipede	+10 atk									Buff Mirror Leavanny
Krookodile	+10 def
Golem		+10 atk				Alolan form
Raichu		+10 spe				Alolan form					2 abilities
Ampharos	+10 def				Mega form
Alakazam	+10 spd				Mega form					Buffed to mirror Gengar
Pidgeot		+10 spe				Mega form
Beedrill	+10 atk				Mega form					2 abilities	Buff Mirrored Butterfree
Butterfree	+10 spa				Gigantamax form		+Gained Hurricane(8)	2 abilities	Buff Mirrored Beedrill
Pikachu 	+10def, +10spd			Gigantamax form			2 abilities


	gen7:
Alakazam-Mega	+10 spd			*Correction for the stat buff recieved in gen 6, totalling +90 bst instead of the mega standard +100
Arbok		+10 atk											Buffed to mirror Sandslash(yes)
Masquerain	+20 spa +20 spe									2 abilities	Buffed to mirror Araquanid
Volbeat		+20 def, +10 spD											Buffed to mirror Illumise
Illumise	+20 def, +10 spd											Buffed to mirror Volbeat
Lunatone	+20 hp  				Meteor Beam??				Levitate	Buffed to mirror Solrock
Solrock		+20 hp					*minor movepool adds; flare blitz(7)	Levitate	Buffed to mirror Lunatone
Chimecho	+10 hp, +10 def, +10 spd							Levitate
Crustle		+10 atk
Cryogonal	+10 HP, +20 def									Levitate Buffed to mirror Avalugg
Electrode	+10 spe
Qwilfish	+10 def
Magcargo	+10 hp, +10 spa
Noctowl		+10 spa
Dugtrio		+20 atk					Alolan Form
Exeggutor	+10 spd					Alolan form					2 abilities
Farfetch'd	+25 atk					Galar form + Galar Evolution		Galarian forms have 2 abilities
Corsola		+10 hp, +10 def, +10 spd		Galar form + Galar Evolution
Mantine		+20 HP					Gained Hurricane(8) + Roost(7)		No longer mirrors Skarmory
Swellow		+25 spa					Gained Hurricane(8), gained Boomburst in gen6
Woobat		+10 HP					Nasty Plot for Simple (8)
Dodrio		+10 spe					Swords Dance, Stomping Tantrum, Jump Kick(all 7)
Ariados		+10 spd			Signature move... *acts satisfied with marginally above average move on an unusably bad mon*
Delcatty	+20 spe 	They uh... buffed Normalize to 1.2x while nerfing other -ate abilities from 1.3 to 1.2, that's something?
Pelipper	+10 spa					Drizzle ability
Beartic		+20 atk					Slush Rush					Buffed to mirror Ursaring

As of Gen 8 SS expansions, 52 pokemon including Mega Alakazam have obtained stat buffs.

	Stat nerfed pokemon:
Aegislash	-10 def, -10 spd			functionally also -10 atk, -10 spa for Sword form

	Stuff that didn't get any stat buffs but still unique buff a generation after introduction, not counting HA's gen5
Heatmor			Fire Lash signature
	(Cubshoo	Slush Rush)
	(Wingull		Hydration)
	(Vanillite	Snow Cloak)
	(Vanillish	Snow Cloak)
Vanilluxe		Snow Warning
Torkoal			Drought
Weezing			Neutralizing Gas							Previously only Levitate

	Ability "nerfs"
Gengar 			Cursed Body
Entei			Inner Focus
Suicune			Inner Focus
Raikou			Inner Focus
	I will put miscellaneous movepool nerfs in here too:
gen 8: Nasty Plot is no longer learned by Thunderus
Gen 7: Power-Up Punch is no longer usable on Kanghaskan
Gen 6: Eruption Heatran(gen5) no longer is usable by Pentagon rule's addition, Gen 4's Sheer Cold Suicune now also is no longer usable.


	Observation:
	Mirror correlations; it be BST's identical and stat distribution in a simalar or polarizing way. Beartic got +20 to mirror Ursaring, Masquarain got +40 to mirror Araquanid (yes), however Mantine for +20 HP to no longer mirror Skarmory. Pelipper to your suprise is a BST mirror to Swellow, with Wingull and Taillow being compleat mirrors, and both Pelipper and swellow having had 430 bst, but now they differ assumably in prevention of another top usage Drizzle user.
Ariados in this is unclear. Ariados got a signature move in addition to a stat buff of 10 for 390 -> 400 bst. But it's counter part Ledian, who is some how even worse, didn't get anything. Dustox is in a simalar situation with Beautifly, who got +10 bst, while dustox who is an opposite to it didn't get such a buff.
Other incompleat game-exclusive counter parts that could see a buff;
Honchcrow vs Mismagius with Mismagius being 10 bst below.
Aromatisse has 18 bst below Slurpuff
Seviper and Zangoose are 2 of the most well known counterparts(rivals), it wouldn't be odd to see them be buffed in the future.
Both Sableye and Mawile who are counterparts have both obtained Mega Evolution. Plusle and Minun(also mirrors) alongside Pachirisu(sharing BST and concept) are 405 BST and perhaps could be raised by 20 to 25 BST to lift it into the range of Emolga (428) with other Electric rodents at 435.
	BST related; While Corsola/Delcatty are the other full evolved pokemon with a BST of simalar value, both were buffed to 410 and 400 respectively, with Delcatty's signature finally being 1.2x, (despite still being a more negative ability than a possitive). Corsola got a regional form, so its quite likely we will see Delcatty also get one in the near future. This might seem insignificant, but there is a clear trend in the low BST pokemon like Azumarill, Magcargo, etc being buffed. Noticable pokemon remaining in 410 BST include Sudowoodo and Pyukumuku. Infact, below Mawile and Sableye, who both have mega's, there are only Farfetch'd(who is now simalar BST to Mawile/Sableye after buff), Spinda, Unown, Delibird, Luvdisc, Ditto, Smeargle and Shedinja. Ditto/Smeargle/Unown/Delibird have a movepool gimmick, Shedinja is defined by its gimmick, Luvdisc sorta has a gimmick in Heart Scale collection but could as well become a usable pokemon by regional evolution and Spinda also is ment to have a gimmick but ... they literally stepped away from it since gen5, but buffing it would be awkward as its stats are 60 across the board; they would need to make a regional evolution OR Mega like Glalie if they intend on buffing that pokemon with known methodes.
On topic of Pyukumuku, most of its BST is wasted on physical attack and it still does well for Singles(#64 at moment of posting this for Battlespot singles, and having been even higher in the past). Though one could always argue it could be deserving of a buff, Gamefreak only seems to care about making something worth considering rather than "good" per say. Sudowoodo has no reason being 410 BST especially for gen2's story where you are implied to capture it at level 20. 430 seems like a logical expectation, even if still low from a competitive view.
As last pokemon by level obtainability; Pincurchin. It sits at 435 and is for now obtained at level 38 alongside Kingler/Octillery's. I expect a situation of level obtainability to be lowered, simalar to what happend with Qwilfish and/or a stat buff of 10-20 HP.
	On topic of Intimidate Krookodile however, it seems a lot of Intimidate pokemon have gotten stat buffs, I wouldn't have called this pastebin reaching if it wasn't for me to say something like "oh, they might as well buff Mightyena then". Though Explicitly Krook is an odd one here. Krookodile was in 3/8 Top Worlds teams for VGC2011, sure it compleatly dropped in usage the year after but with that logic Eelektross would also be getting a stat buff and Vikavolt too for its debute at VGC17. To explain why it might not have been given another buff could be in the fact it rose to Nr. 1 in 2017 by Ryoto Otsubo, the overall usage was 1.8%, which was comparable to as obscure as Pachirisu was in VGC14. Simalar to Krookodile, Mightyena also doesn't mirror anything, and even has intentionally low stats on its pre-evolution, I could whiff up some implications like 270 Yamper to 490 Boltund, thus Mightyena should gain 20 BST, but, there is no logic to that, even if it would seem sincere. While a regional would make sense here, what would that regional even be, Hyena's no longer have sister/sub species, so they would have to do Ice-age fossile like pokemon to make a regional for it without it just becoming a dog.

They also have some weird obsession with Levitate:
Besides Unown, Carnivine, and Claydol, all Levitate pokemon have gotten buffs(as of Sword/Shield Crowned Tundra) or had/have high usage in VGC; Bronzong, Cresselia, Rotom's, Hydreigon, Vikavolt had a good debute in VGC17, and Eelektross in VGC11. The buffs the other ones have recieved go along the line of 10+ viable moves to Lati-twins, Lake Deities, and less expansive but still important gen7's Dragon Dance addition for Flygon, stat buffs on Chimecho, Cryogonal, Solrock/Lunatone, finally Weezing with 2 new abilities and a regional form.
That's quite a trend, especially if Snap Trap does indeed get distributed to Carnivine, and if you consider Claydol is one of only a few to have gained from all the move buffs in Rapid Spin and buffed Teleport, also one of only a handful to use Scorching Sands as a Ground-type, though more likely to be a coincidence for Claydol.


Conclusions of pokemon to likely see a stat buff in the future based on pairs:
Minun			+25 BST
Plusle			+25 BST
Dustox			+10 SpD
Ledian			+10 BST
Fearow?			+10 BST
Aromatisse		+20 BST
Conclusion of pokemon to likely see a stat buff in the future based on stats
Pachirisu		+25 BST
Kricketune		+15 BST
Sudowoodo		+20 BST
Pincurchin		+10 to 20 BST, logically HP, but this is Gamefreak, so who knows.

Mismagius would be with +10 but has this stupid stat boost logic where it stats go from 60 60 60 85 85 85 to 60 60 60 105 105 105 with the last 10 points to parallel Honchcrow being a leftover value they just didn't add in as its 5 points shy of +5 in all 3. Just put them in SpA or Speed please.

Conclusion of pokemon to likely see a regional/temporary form(Mega/Gigantamax/other);
Spinda	 	possibly 0% if gimmick mon
Delcatty
Mightyena	(2/3 trends)

Stuff that got buffed with implications in low bst for a regional/temporary form:
Chimecho (+7% chance)
Qwilfish (+7% chance)
Magcargo
Noctowl
Chatot
While Azumarill fits the description, it has been buffed in transition of the generation it skyrocketted to a top meta mon, even if no longer highest in usage, GF only needs it to do well on average, ONCE. In addition to Hugh/Pure Power pokemon to have a simalar BST.

Pokemon that have higher BST but got buffed despite it, and aren't part of a previous list:
Noctowl			Got Hurricane, but any bird got it in gen 8 as per high end tm/tr upgrade
Roserade
Crustle
Electrode		They needed a pokemon to naturally reach Mega's speed tier.
Krookodile		Has Intimidate? Its simalar to Azumarill where after the buff it saw a lot of usage, though a generation later.

Pokemon that got ability/move based buffs:
Exploud
Jumpluff
Stoutland
Poliwrath
Dodrio
Ariados.... sure... lets go with that...

Carnivine came to mind when I first wanted to check for these trends because I noticed a lot of Levitate, however, Snap trap is soon going to be a Pseudo-signature, and we can take the implication off of that, that we won't be getting a regional for that pokemon. In addition to its stats being exactly that of Araquanid/Masquerain, which might imply it will get new abilities in comparison to the usefulness of the other 2 BST having pokemon their abilities instead of giving it a regional form.





Statistics:
32 gigantamax
46 Mega with charizard and mewtwo both having 2 forms for 48 mega evolutions out of 487 full evolved pokemon. (0.0944%)
35 regional forms with meowth having 2 for 36
6 regional evolutions
totalling: 119 forms, or 17.57% of all pokemon as of gen 8 Sword/Shield post expansion to have their chance of a certain form/evolution. Regional evolution can be accounted differently in which pokemon are 1 or 2 stage to even get a theoretical regional evolutionbut kowing its only 6, the chance difference is almost irrelevant.
If we compare that to the list we have of Mega/Regional pokemon that have been stat buffed before... we find 23.52% of them to have a regional form/Mega/Gigantamax. Or relatively, 33% more likely to have a additional form.
That's not much of a correlation, though the pokemon in this list are all the pokemon that have gotten major movepool upgrades.
The only ones that have obtained major movepool upgrades that aren't in this list have a additional form, example Swampert with a mega or a regional form, like Zapdos, or in case of Lycanroc with a compleatly new seperate form in Lycanroc-Dusk to get a major overhawl.
Infact, if you don't believe me, here is the Pokemon Home TM/TR upgrade list as of Sword/Shield https://pastebin.com/ThLxMUa1
You will notice all upgrades that are vast have been for Legendary pokemon or pokemon with alternitive forms, if we discount Mega Kick/Mega Punch and other consistency updates like Fire Spin/Sand Tomb to all pokemon of Fire/Ground type respectively.
Only Tauros got major movepool changes outside of these requirements, but its relevant moves are direct copy overs for the increase of High Horsepower pokemon, hooved animals getting Close Combat and yet another one for the *has a horn, forgot, so lets now give it Megahorn*, a trend I could be willing to bet money on is going to repeat when Gogoat comes out again.


I have yet to compile evolution -> at x level = x bst as a trend beyond the bottom ones. Though as it looks like right now, Jellicent seems to be below average bst and hasn't seen much usage for a while, but if it got any usage at all, that is often enough for Gamefreak to not buff it(Again Krookodile disputes this)