Gengar sub-disable.
Gyarados @ Leftovers
Trait: Intimidate
EVs: 252 HP / 248 Def / 8 SpD
Impish Nature (+Def, -SpA)
- Waterfall
- Dragon Tail
- Thunder Wave
- Taunt
Heavy Offense, Fire-types, and Fighting-types can be checked with physically-bulky Gyarados. Intimidate neuters Physical Sweepers and Dragon Tail / Thunder Wave disrupts set-up. Gyarados and Jirachi together puts a solid plug on Dragon Dancers. Gyarados not only provides a solid physical defense and key resistances that this team lacks, but also provides paralysis support to this relatively slow team. As Birkal mentioned, although Gyarados is SR-weak, combined with its complementary defense with Jirachi, it easily receives Wishes.
This Gyarados does not handle various threats such as Volcarona, Terrakion, and Dragonite quite as well. However, it can switch into pokemon such as Ferrothorn (barring a TWave), Jellicent, and Scizor, and proceed to set up on them. The use of Substitute prevents Rotom-W from ruining our day by showing it the door as we throw up a sub in the face of Volt Switch. Between Bounce and Stone Edge, I am torn. Bounce allows us to deal with Ferro and Bulky Waters much easier. However, without the rain we will struggle against Rotom-W much more.Substitute + Dragon Dance
Gyarados @ Leftovers
Ability: Intimidate
Nature: Adamant
EVs: 56 HP / 248 Atk / 204 Spe
- Dragon Dance
- Waterfall
- Substitute
- Bounce / Stone Edge
Volcarona and Scarf Darmanitan under the sun is still threatening, being able to take out all the mons with 1-2 hits and having QD / Scarf to minimize revenge-killing. Heavy Offensive team with mons like Haxorus, Dragonite, and SD Scizor can also be problematic to this team. Since I believe LO Gar patches up the team's offense fairly well, I personally think we should resolve the Fire-type / HO weakness.
S.Def Heatran gets OHKOed from Volcarona's +1 LO HP Ground. It also dies to may DDers that trouble this team such as Dragonite and Salamence...S Def Heatran seems pretty obvious here
you mention Volc, Darmanitan, Dragonite and SD Scizor as problems, so yeah I mean (BAN ME PLEASE)s pretty much the best counter to all those pokemon. Also never hurts to have a dedicated stealth rocker / phazer / extra steel right.
defensive Gyara is decent, but having no rapid spinner isnt all that great, dragonite and haxorus dont really care that much with lum berry (which fatty ALWAYS has) and volc carries hp rock more often than not, as well as taking a waterfall in the sun
edit: actually once youve dragon tailed out the dragons they cant set up on anything without full hp so maybe
^ why run Swallow when you can run Recover and get reliable healing without having to waste your defensive boosts?
And surely something better can be run over unSTAB Sludge Bomb. Maybe Yawn or Ice Beam to deal with dragons in a pinch. What is Sludge Bomb even hitting besides Celebi (which Ice Beam also hits, but probably isn't beating it anytime soon)?
I'm going to suggest my personal favorite, Gastrodon.
Gastrodon @ Leftovers
Storm Drain
4 HP / 200 Def / 88 SpA / 214 SpD
Bold
-Scald
-Ice Beam
-Stockpile
-Recover
The EVs give it very similar defenses and allows it to tank a hit and deal some good damage with scald and ice beam. He counters heatran and dragons rather well, so long as they aren't carrying HP Grass. Stockpile can boost it's defenses to ridiculous levels. Recover is for the reliable recovery, duh.
Gyarados @ Lefties
Impish 252 HP/ 252 Def/ 4 Atk
- Waterfall
- Dragontail/ Stone edge
- Rest
- Sleeptalk
I think dragontail would work better because if rocks are up, it will add additional damage/pressure on the mons we are trying to cover, although stone edge works really well too. The only thing I worry about is haxorus (DD or CB) who will be able to take multiple hits from stone edge, whereas every mon would hate to take a dragon tail.
S Def Heatran seems pretty obvious here
you mention Volc, Darmanitan, Dragonite and SD Scizor as problems, so yeah I mean (BAN ME PLEASE)s pretty much the best counter to all those pokemon. Also never hurts to have a dedicated stealth rocker / phazer / extra steel right.
defensive Gyara is decent, but having no rapid spinner isnt all that great, dragonite and haxorus dont really care that much with lum berry (which fatty ALWAYS has) and volc carries hp rock more often than not, as well as taking a waterfall in the sun
edit: actually once youve dragon tailed out the dragons they cant set up on anything without full hp so maybe
Infernape @ Choice Scarf
Trait: Blaze
EVs: 108 Atk / 148 SpA / 252 Spe
Naive Nature (+Spe, -SpD)
- Close Combat
- Fire Blast
- Stone Edge
- Hidden Power Ice