I'd like to nominate two mons that I have used extensively in the current meta and are in really low ranks but do have significant niches right now.
Necrozma from C+ to B-
Necro is probably one of the best bulky CMer currently, even being on par with latias imo. As while latias has better speed, an added dragon typing and true reliable recovery, Necrozma is bulkier on the physical side, has a very good ability for its role and is much more powerful. These aspects allow it to lure in crucial mons like Bisharp and Scizor that Latias or even Cresselia would be unable to bypass.
Prism Armor even allows it to setup on powerful super effective moves from mons such as Krook.
I'll be using the spread of 252 hp/72 def/184+ spe for Necrozma which allows it to outspeed Jolly Bisharp.
Overall, Necrozma is a very decent mon in the current meta as a bulky CMer that should be used as a lure or to sweep lategame when your opponent still thinks scizor or their dark type is a full stop to it.
(bulky rock setter is quite bad tho and outclassed by Mew and Celebi)
Rhyperior from Unranked to C
Rhyperior also is a mon which struggles to find its niche in nowadays meta, mostly because of Hippodown existence. However, it diffentiates itself with its rock typing and once again great ability (which is basically the same as Necrozma haha)
It mostly checks the same mons as Hippo, while having trouble with fighting, ground and steel types. But its added rock typing allows it to checks key threats like Togekiss, CM Z-Hyper Beam Raikou which is gaining popularity, most fire-types and has a powerful rock stab in rock blast, useful for Frosslass. It can also run specific coverage to lure a couple of mons : elemental punches for Scizor or Gliscor and Megahorn for Celebi. Not necessarily better than Hippo, but it has its niches.
old long ass game showcasing a Rhyperior+Necrozma balance: http://replay.pokemonshowdown.com/gen7pokebankuubeta-521112836

Necro is probably one of the best bulky CMer currently, even being on par with latias imo. As while latias has better speed, an added dragon typing and true reliable recovery, Necrozma is bulkier on the physical side, has a very good ability for its role and is much more powerful. These aspects allow it to lure in crucial mons like Bisharp and Scizor that Latias or even Cresselia would be unable to bypass.
Prism Armor even allows it to setup on powerful super effective moves from mons such as Krook.
I'll be using the spread of 252 hp/72 def/184+ spe for Necrozma which allows it to outspeed Jolly Bisharp.
252+ Atk Life Orb Bisharp Sucker Punch vs. 252 HP / 0 Def Latias: 351-413 (96.4 - 113.4%) -- 75% chance to OHKO
252+ Atk Life Orb Bisharp Sucker Punch vs. 252 HP / 72 Def Prism Armor Necrozma: 218-259 (54.7 - 65%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Technician Scizor Bullet Punch vs. 252 HP / 0 Def Latias: 177-208 (48.6 - 57.1%) -- 44.5% chance to 2HKO after Leftovers recovery
252+ Atk Choice Band Technician Scizor Bullet Punch vs. 252 HP / 72 Def Necrozma: 150-177 (37.6 - 44.4%) -- guaranteed 3HKO after Leftovers recovery
252 Atk Krookodile Knock Off (97.5 BP) vs. 252 HP / 0 Def Latias: 320-380 (87.9 - 104.3%) -- 25% chance to OHKO
252 Atk Krookodile Knock Off (97.5 BP) vs. 252 HP / 72 Def Prism Armor Necrozma: 202-240 (50.7 - 60.3%)
252 Atk Krookodile Earthquake vs. 252 HP / 72 Def Necrozma: 141-166 (35.4 - 41.7%) -- guaranteed 3HKO once knocked off
252+ Atk Life Orb Bisharp Sucker Punch vs. 252 HP / 72 Def Prism Armor Necrozma: 218-259 (54.7 - 65%) -- guaranteed 2HKO after Leftovers recovery
252+ Atk Choice Band Technician Scizor Bullet Punch vs. 252 HP / 0 Def Latias: 177-208 (48.6 - 57.1%) -- 44.5% chance to 2HKO after Leftovers recovery
252+ Atk Choice Band Technician Scizor Bullet Punch vs. 252 HP / 72 Def Necrozma: 150-177 (37.6 - 44.4%) -- guaranteed 3HKO after Leftovers recovery
252 Atk Krookodile Knock Off (97.5 BP) vs. 252 HP / 0 Def Latias: 320-380 (87.9 - 104.3%) -- 25% chance to OHKO
252 Atk Krookodile Knock Off (97.5 BP) vs. 252 HP / 72 Def Prism Armor Necrozma: 202-240 (50.7 - 60.3%)
252 Atk Krookodile Earthquake vs. 252 HP / 72 Def Necrozma: 141-166 (35.4 - 41.7%) -- guaranteed 3HKO once knocked off
0 SpA Latias Hidden Power Fire vs. 0 HP / 4 SpD Scizor: 224-268 (79.7 - 95.3%) -- guaranteed 2HKO
0 SpA Necrozma Hidden Power Fire vs. 0 HP / 4 SpD Scizor: 256-304 (91.1 - 108.1%) -- 43.8% chance to OHKO (guaranteed w/ rocks)
0 SpA Latias Hidden Power Fire vs. 0 HP / 4 SpD Bisharp: 124-148 (45.7 - 54.6%) -- 54.3% chance to 2HKO
0 SpA Necrozma Hidden Power Fire vs. 0 HP / 4 SpD Bisharp: 142-168 (52.3 - 61.9%) -- guaranteed 2HKO
0 SpA Necrozma Hidden Power Fire vs. 0 HP / 4 SpD Scizor: 256-304 (91.1 - 108.1%) -- 43.8% chance to OHKO (guaranteed w/ rocks)
0 SpA Latias Hidden Power Fire vs. 0 HP / 4 SpD Bisharp: 124-148 (45.7 - 54.6%) -- 54.3% chance to 2HKO
0 SpA Necrozma Hidden Power Fire vs. 0 HP / 4 SpD Bisharp: 142-168 (52.3 - 61.9%) -- guaranteed 2HKO
Overall, Necrozma is a very decent mon in the current meta as a bulky CMer that should be used as a lure or to sweep lategame when your opponent still thinks scizor or their dark type is a full stop to it.
(bulky rock setter is quite bad tho and outclassed by Mew and Celebi)

Rhyperior also is a mon which struggles to find its niche in nowadays meta, mostly because of Hippodown existence. However, it diffentiates itself with its rock typing and once again great ability (which is basically the same as Necrozma haha)
It mostly checks the same mons as Hippo, while having trouble with fighting, ground and steel types. But its added rock typing allows it to checks key threats like Togekiss, CM Z-Hyper Beam Raikou which is gaining popularity, most fire-types and has a powerful rock stab in rock blast, useful for Frosslass. It can also run specific coverage to lure a couple of mons : elemental punches for Scizor or Gliscor and Megahorn for Celebi. Not necessarily better than Hippo, but it has its niches.
old long ass game showcasing a Rhyperior+Necrozma balance: http://replay.pokemonshowdown.com/gen7pokebankuubeta-521112836
Last edited: