DISCLAIMER: VRs are not real and useless I will add a link to my reasoning later. This is not deleted is simply because i dont want to
MY Personal VR but with sets
Those different abilities I put in the same slot means they are in their tier is because of the the combination of the influence of all of them. for example you dont know if a random kartana in your opponments team is a huge power one or a wonder guard one or even a no guard one, as a result you might have to look out for all of them
The tiers are based on how important are they to the whole metagame.
S+ tier

Chansey(Innards) Dont really have to explain

Chansey(Impostor) Dont really want to explain

Blissey(Innards, Impostor) Dont really have to explain
S tier

Mewtwo-mega-x(All kind of Huge power sets) Dont really have to explain

Audino-mega(Wonder guard) Dont really have to explain

Zygarde-complete(All kind of Prankster) Dont really have to explain
S- tier
(actually I find it hard to find some specific set that is just one tier worse than those above)

Kartana(Defensive Wonder guard, Setup Wonder guard, Setup Huge Power, scarf Huge Power, setup No Guard, setup Mguard) Kartana is the thing that can run both offensive sets and defenive ones while both of them are a big threat. good news is its kind of wallable.

Mewtwo-mega-x(Life Orb Shadow Tag, Band Shadow Tag, setup no guard, Scarf Shadow Tag, setup mguard) After the PHPL I when I go check cscls team dump I realized how underrated Stag mmx is... It can both be targeting for setup sweepers with priority moves like first impression shadow sneak or even vacuum wave, or it can be going for the defensive mons and utilize its crazy atk and surprising 154 spa and 106-100-100 bulk, for example ice beam for zygarde, mmm for slowbro, and oecanic operetta for steelix. Scarf shadow tag is a little bit outclassed by mmy and other items as most of the meta game is weaker on special side and priority moves aren't gaining any damage boost from scarf and 130 spe +1 is not fast enough to outspeed a lot of things after shell smash, but after all it's still doing what it should do.

Groudon-Primal(Setup huge power, Choice Band Huge Power, Choice Scarf Shadow Stag, Choice Scarf Huge Power, Prankster, Magic Bounce, Choice Band Stag) Pdon is that kind of thing that you can just put 5 of them and get a great team. Honestly Groudon is underrated these days. with a natural physical bulk(without postive nature) that is better than audino and a 180 attack and access to stab v-create, groudon is going crazy in the game. It can run so many sets and all of them are so good that I dont know where do I begin.

deoxys-attack(magic guard, Huge Power, all kinds of Shadow Tag, Psychic Surge, no setup No guard) I struggled to not to make a A++ tier only for deoa so Ive decided to put it here. Deoa is really underrated. Its the best thing you can think of when you are trying to make a destructive hyper offense team. So as we all know deoa have no bulk, 180 atk and spa and a decent 150 speed. Magic guard deoa might be the most common one these days, as psysurge HO is not very common and something with a secure sash and high speed tier and most importantly, something that can take care of the innards, the mguard set might be the most common one for deoa. Stag deoa is also doing a great job as its decent speed tier and a 180 base stat on both special and physical side. It works kind of like stag mmy but it have less bulk and should be more careful about sashes. And psy terrain is the real place where deoa is going absolutely crazy. same stats on both attack allows it to have a stab photon geyser with unknown move side, and huge power shell smash is also scary, and most importantly its beautiful 150 speed is out speeding almost everything. And no guard set is working a bit like mmy but its faster and its a real glass cannon. But its bulk also allow us to improof it easily, as long as we can hit it.

mewtwo-mega-y(shadow tag, innards out, all kinds of no guard, magic guard, psychic surge) I dont like it, pretty self explainable for all the sets. remind me to write this after I post it as I should not be hating it at that time.
A+ Tier

meloetta(wonder guard) typing

Gengar-Mega(magic guard, parental bond, no guard) Dont really have to explain

Slowbro-mega(wonder guard, furcoat, prankster) bulk and typing

muk-alola(wonder guard) typing

deoxys-speed(scarf no guard, no guard,comatose) got nothing to say. Scarf no guard is underrated for what it can out speed. a bit outclassed by phero when it dont run photon which it shouldnt do
:solgaleo-dusk-mane: solgaleo-dusk-mane(huge power, mbounce) Actually I know that we shouldn't judge how good is a mon on a specific type of team which is not very common but I love it on psyterrain. Its like pdon on psyterrain. It nukes.
A tier

Slaking(huge power, harvest) a crazy late game sweeper, Dont really have to explain

Gyarados(offensive and defensive wonder guard) typing and bulk

greninja-ash(defensive wonder guard, all kinds of Shadow tag, no guard) stag is actually underrated with its speed tier and not bad offensive stats.
A- tier

zygarde-complete(arena trap, stag) trap and kill those without shed shell and tank damage with their bulk. psong or toxic or even use up their pp to kill.

steelix-mega(prankster, mbounce, furcoat) Actually furcoat is a bit underrated

regigigas(huge power, harvest) REGIGIGAS IS NOT BAD. it have better special bulk so that it doesnt die immediately to mmy and gengar and is better on pursuit trapping those things. And huge power priority paired with pursuit is underrated.
B+ tier

rayquaza-mega(stag, mold breaker) this is really underrated. its basically a variation of deoa, with slower speed and different typings and have some bulk. And Clangorous Soulblaze OHKO zygarde. Mold Clangorous Soulblaze is actually kind of working. stag with dragon accent OHKO mmx, you can run whatever things like stag deoa, but it can target nearly everything.

diancie-mega(pixeliate) got nothing to say, setup set is underrated

lunala(scarf / setup innards) innards are all underrated

Giratina-Origin(innards,mbounce) this innard is not underrated idk why
:lopbunny-mega: lopbunny-mega(no guard) good one but overrated
B tier

pheromosa(no guard, stag, comatose) Psysurge terminator. underrated by most people and a bit overrated by a few including me. I wanted to give it A or A+ but when I go check the calc its actually not that good. basically better deos if without scarf. outspeed all the thing it need to and have a stab bug type and a bit of offensive stat. stag is mainly with lo/spec/band. and stag one can actually take care of chansey with specific atk investment with pin missle. Importance of chansey solution is underrated.

Celesteela(wonder guard, prankster , magic bounce) not underrated but appears so unoften idk why

Arceus(wonder guard) Definitely Underrated. People forget about its 120-120-120 bulk and use audino instead even without giving this a glance. and STAB boomburst actually hits as hard as mmy. I like the fast support set tho.

necrozma-dawn-wings(wonder guard) This is a bit annoying as you have to choose whether to have a self improofable sweeper or a ghost type STAB. So most people choose moongeist. So do I. And its a bit overrated.

lopunny-mega(no guard) I dont like this. Overrated. Good typing good speed mid bulk bad looking.

Solgaleo(setup innards out, setup mbounce, support innards out, support mbounce)self explainable

gengar-mega(scarf stag) underrated

Doublade(furcoat, prankster, magic bounce) overrated
B- tier

marowak-alola(huge power priority user) importance of vcreate and pursuit is under estimated. and this small thing have mid bulk, can take a +2 sunsteel from kart by abt 50% and can vcreate back. I love it.

yveltal(mbounce, prankster) useful

slowbro-mega(arena trap, stag) Actually so good. I am confident to switch this into some random mmx with sets unknown or some random pdon.

kartana(utility mguard) good

(mguard) bad

gengar-mega (scarf pbond) Its overrated as its job is to counter HOs and sash spams but hazard can do probably the same job. A bad late game sweeper.

groudon-primal(wonder guard) clearly it does something like walling sunsteel, walling sunsteel and walling sunsteel... and mabye fake speed and some coverage fishing sweepers without moldy move(dont really exist a lot).

deoxys-attack (sash pbond lo pbond scarf pbond) this is just good, or as bad as scarf bond gar. It do the job of countering ho and sash spam probably better than genger but its awful outside of HO. But its true scarf pbond one is a bit outclassed by gar.

Kyogre-Primal(wonder guard) idk. It do the things wgs do.
C+ tier

Banette-mega(huge power) I dont know why such a ghost type physical attacker can be so bad but I can't find how it deserve to be higher

Rayquaza-Mega(Aerilate) its bad but not that bad

mewtwo-mega-x(innards) bad I hate it

mewtwo-mega-y(scarf pbond) worse gengar

Gyarados-Mega(magic guard, huge power) idk should be bad

yveltal(huge power, magic guard) worse than I have thought

Scizor-Mega(wonder guard) overrated. cant even actually wall normal mmx
:hoopa-unbond: hoopa-unbond(wonder guard) bad. Its too freaking slow.
C tier

lunala(no guard) fissure actually works well with photon and moongeist, if you can somehow get pass dark types other than muk, and surprise factor matter

Ho-Oh(magic guard) ig a decent ultility mguard user?

Ferrothorn(wonder guard) A steel type wonder guard with out ground weakness. But weak to Fighting do hurt. Or we can say a more and only defensive kart
C- tier
waiting to be classified(not nessessary means wont appear on higher tier):
Huge Power hoopa
huge power pheromosa
dialaga
mold deos
mold deoa
innards wg slaking
mguard gardevior
huge power mmy
mold muk
wg sableye
WIP