Nominating
Darmanitan for
B-
Reserved for Pokemon who cannot sweep through or wall significant portions of the metagame, but can properly fulfill a given offensive/defensive niche. Support Pokemon in this category have flaws that prevent them from doing their job or are setup bait for dangerous sweepers. Pokemon who are partially outperformed by a Pokemon in A or S Rank, but are otherwise very dangerous, may also fall into this category.
First lets begin with the typing of Darmanitan; Fire, Fire isn't the best type last gen, thnx to Stealth Rock Weakness and Rain being way too dominant; however, this gen, Fire got a few notable buffs: A) Having a better Sun Summoner (Mega Charizard Y), B) A viable new resistance; Fairy, and C) Rain being waaaay less dominant. Also another Niche is that Steel- Type are more common this gen, thus being the need of Fire type more. Also we can look at Darminatan's moves' catogery: Physical, Special base pokes we generally better last gen, but this gen? They are equal if not inferior to Physical attacks, as new special walls have been introduced (Sylveon, Goodra, Draglage, & Florges) while most of the common special moves have also been nerfed.
Now, let's look at his Ability:
Sheer Force, A very good ability to Darminatan, combined with Life Orb and his amazing movepool, almost nothing stands in Darminatan's way, not even physical walls. Rock Slide, Flare Blitz & Fire Punch are 3 viable moves on Darminatan that benefit GREATLY from Sheer Force. Furthermore, Darmanitan has base
140 Attack, combined with above average
95 Speed, but it doesn't stop there, his respectable bulk
105/55/55 not only allow him to survive better hits, but also that HP lets him handle that Recoil quite nicely (Unless you Flare Blitzed a Blissey or something).
His downsides are that he is outclassed by Mega Charizard X, Mega Charizard Y, and Heatran, but those are the only 3 pokemons that outclass him as fire typing, and the former two only as fire type sweepers. He is also outspeed quite a lot, and while that is hugely solved by equipping a Choice Scarf, that makes him lack the power of Life Orb + Sheer Force. But he is still a powerhouse and a wallbreaker, the only reason this guy is not
A is because it is slightly overpowered by Mega Charizard Y.
Now here are some calcs:
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 0 Def Umbreon: 352-417 (89.3 - 105.8%) -- guaranteed OHKO after Stealth Rock
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 232+ Def Skarmory: 439-523 (131.4 - 156.5%) -- guaranteed OHKO
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 252+ Def Tangrowth: 476-562 (117.8 - 139.1%) -- guaranteed OHKO
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 252+ Def Aegislash-Shield: 416-491 (128.3 - 151.5%) -- guaranteed OHKO
252+ Atk Life Orb Sheer Force Darmanitan Rock Slide vs. 4 HP / 0 Def Multiscale Dragonite: 169-199 (52.1 - 61.4%) -- guaranteed 2HKO (OHKO after Stealth Rock)
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 0 Def Thick Fat Mega Venusaur: 322-382 (88.4 - 104.9%) -- 31.3% chance to OHKO (Guaranteed OHKO after Stealth Rock)
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 0 Def Donphan: 329-387 (85.6 - 100.7%) -- 6.3% chance to OHKO (Guaranteed OHKO after 2 layers of Spikes)
252+ Atk Life Orb Darmanitan U-turn vs. 4 HP / 0 Def Latias: 252-299 (83.4 - 99%) -- 75% chance to OHKO after Stealth Rock
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 252+ Def Eviolite Chansey: 508-601 (72.1 - 85.3%) -- guaranteed 2HKO
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 4 Def Deoxys-D: 253-300 (83.2 - 98.6%) -- guaranteed 2HKO after Leftovers recovery
^ that is amazing, but for Deoxys-D & chansey: w/ 2 layers of Spikes + Stealth Rock it's a OHKO
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 252+ Def Eviolite Chansey: 508-601 (72.1 - 85.3%) -- guaranteed OHKO after Stealth Rock and 2 layers of Spikes
252+ Atk Life Orb Sheer Force Darmanitan Flare Blitz vs. 252 HP / 4 Def Deoxys-D: 253-300 (83.2 - 98.6%) -- guaranteed OHKO after Stealth Rock and 2 layers of Spikes
And here you go, he just 1-2HKO the biggest walls of OU