Discussion points:
Greninja: S or A+?
Rotom-Heat: A or A-?
Azelf: A or A-?
Conkeldurr: A or A-?
Heracross: A or A-?
Magnezone: A or A-?
Slowbro: A or A-?
Togekiss: A or A-?
Blissey: A- or B+?
Goodra: A- or B+?
Reuniclus: A- or B+?
Crawdaunt: A- or B+?
Venusaur: B+ or B?
Chandelure: B+ or B?
Ludicolo: B+ or B?
Snorlax: B+ or B?
Aerodactyl: B or B-?
Doublade: B or B-?
Greninja -> S
doesn't really have a check, beats Mantine with Gunk Shot/Rock Slide if high attack investment, Gastrodon with Grass Knot, Blissey/Chansey with Low Kick if it has high attack investment. Greninja cannot be predicted, can always be a scarf set aswell, which means thta it deserves S Tier, always.
Rotom-Heat -> A-
Gets worn down by Stealth Rocks, has limited recovery in Pain Split, gets outclassed by Rotom-Wash, is not really powerful without Choice Specs which limits its recovery even more.
Azelf -> A-
Should have been A before, now it is way worse with so many Dark-types around, Pursuit, many hazards remover, speedy meta with a lot of Priority attacks.
Conkeldurr -> A
lives almost every hit, especially the annoying Guts AV set, can heal back up on threats with Drain Punch, the Flame Orb set can be used to break through thick team cores, has a lot of moves it can use, should also see some usage on Trick Room
Heracross -> A
powerful Guts abuser, has a nieche set in Scarf Moxie, can 2hko any Pokémon in the current metagame (not set upped), has pretty good special bulk that lets it live a lot of hits like Clefable's Moon Blast/most Scald abusers
Magnezone ->A-
even though Ferrothorn is super common, Scarf Magnezone doesn't beat it, specs Magnezone is kind of slow, a choiced set can be walled by Ground type Rotom-Wash/Heatran cores, any other item is bad on it though
Slowbro -> B
one of the worst Regenerator mons right now, Weavile, Greninja, Band Tyranitar, Amoonguss with Clear Smog etc are everywhere, that can beat it 1v1.
Togekiss -> B+
not a competitve Pokémon, relies on flinch hax, gets walled by Steel/Electric cores easily, many scarf users that dont care about Air Slash. Stallbreaking set might be good when the meta shifts to stall
Blissey -> B+
Chansey totally outclasses it, doesn't lose to Lati, Blissey loses to many common threats when rocks are up, scary fighting types are everywhere, doesnt help much in teams in my opinion
Goodra -> B+
Very versatile, can run moves to punish defensive cores, only has a few revenge killers that guarenteed ko it, walls common threats like Rotom-Wash, Amoonguss, etc.+
Reuniclus -> A
Very scary mon on Trick Room (WHERE IS IT BTW), has two very good abilities in Regen and Magic Guard, can be offensive, defensive, a really good calm mind abuser, only draw back is Focus Miss
Crawdaunt -> A+
has no switch in. period. Choice Banded Crawdaunt can two hit ko any mon in the current metagame, has a nieche set in Aerial Ace to beat uncommon mons like Chesnaught
Venusaur -> B-
gets outclassed by amoonguss, is a meh sun abuser, doesnt beat rain at all as ice beam is not resisted unlike on ferro, has unreliable recovery unlike Amoonguss
Chandelure -> B+
Specs set can be super scary, has Taunt for Life Orb sets to beat stall solely, Calm Mind if it wants to boost up, is immune to common guts mons (facade + fighting move), is immune to mono attacking Heatran
Ludicolo -> B
other Rain abuser totally outclass it, needs Life Orb to actually do damage, if specs is used it can be outplayed too easily
Snorlax -> B-
too many Ghost types, Taunt user, fighting types around in the metagame that beat it 1v1
Aerodactyl -> A-
really solid, fast rocker, has taunt to stop opposing rocks, very underrated in my opinion
Doublade -> B-
too many dark types/strong special attacker that beat it 1v1, and it is too weak to hurt back.