Sorry about any confusions in below descriptions, since English is not my mother tongue.
Importable:
https://pokepast.es/3e168a59d2f15321
Descriptions:
Obstagoon @ Flame Orb
Ability: Guts
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Close Combat
- Facade
- Knock Off
- Parting Shot
The leader of this team, Obstagoon.
Overwhelming power thanks to Flame orb and Guts, can break most of walls with Knock Off+Facade.
Togekiss: 252+ Atk Guts Obstagoon Facade (140 BP) vs. 252 HP / 252+ Def Togekiss: 219-258 (58.5 - 68.9%) -- guaranteed 2HKO
Milotic: 252+ Atk Guts Obstagoon Facade (140 BP) vs. 252 HP / 252+ Def Milotic: 246-289 (62.4 - 73.3%) -- guaranteed 2HKO after Leftovers recovery
Porygon2: Eviolite wanna keep distance from Knock Off
Nice STAB coverage, only Klefki Cobalion and Diancie(rare in metagame) can resist Dark+Normal. Klefki and Diancie can be easily overloaded by Knock Off their leftovers, and killed with Close Combat when they are unhealthy. Cobalion usually has and only has one chance to switch in(consider the prediction of using CC), and similarly it is uncomfortable for Cobalion to lose its leftovers.
252+ Atk Guts Obstagoon Close Combat vs. 252 HP / 0 Def Cobalion: 270-318 (69.9 - 82.3%) -- guaranteed 2HKO after Leftovers recovery
Enough bulk, able to suffer the Outrage of CB Zygard-10%.
252 Atk Choice Band Zygarde-10% Outrage vs. 0 HP / 0 Def Obstagoon: 243-286 (74.3 - 87.4%) -- guaranteed 2HKO after burn damage
Enough fast, 289 is faster than 284(80+/Gardevoir Chandelure and Regidrago) but slower than Xurkitree(83+/291, but usually has scarf).
As a physical attacker, guts make it never worry about reducing power by being burn, but less the duration instead.
It need to be brought into the field with the aid of VoltTurn and Teleport users, or double switch in rare condition.
Crobat @ Heavy-Duty Boots
Ability: Infiltrator
EVs: 248 HP / 8 SpD / 252 Spe
Jolly Nature
- Brave Bird
- Toxic
- U-turn
- Roost
Supporter 1, Crobat is basicly the top speed tier in RU.
Poison+Flying is a good combination, which immune groud(except Zygard) and 4x resist grass and fighting. The Boots make it immune damage from Stealth Rock, provide more availability to switch in (but how can this bat to wear boots xd). Brave Bird is a powerful STAB move. U-turn bring Zygard10% and Obstagoon to field to break holes.
Able to switch in Zarude if both Porygon2 and Cobalion are unhealthy.
252 Atk Zarude Darkest Lariat vs. 248 HP / 0 Def Crobat: 159-187 (42.6 - 50.1%) -- 0.4% chance to 2HKO
0 Atk Crobat U-turn vs. 0 HP / 0 Def Zarude: 180-212 (51.2 - 60.3%) -- 90.6% chance to 2HKO after Leftovers recovery
Toxic is an uncommon choice, it can 'surprise' some pm annoying with status(like Rhyperior), and in addition of Infiltrator , is to check those Subtitute users especially Suicune. Also you can use Crobot to check Togekiss with Toxic(may be not confident in slow walls), just be care of Thunder Wave.
Porygon2 @ Eviolite
Ability: Trace
EVs: 248 HP / 196 Def / 64 SpD
Calm Nature
IVs: 0 Atk
- Ice Beam
- Recover
- Toxic
- Teleport
Thanks to Eviolite and Recover, P2 can wall attacks from both physical and special site. The EVs alocation is meaningless, but works well. Ice Beam beats Thunderus/Zygard10% and Toxic punish those who wanna set up or wanna set/remove hazards or even wanna make P2 toxic. Teleport is the keep point to bring Obstagoon and Zygard into the field.
Some calcs:
252 Atk Zarude Close Combat vs. 248 HP / 196 Def Eviolite Porygon2: 148-176 (39.6 - 47.1%) -- guaranteed 3HKO
252 Atk Choice Band Zygarde-10% Outrage vs. 248 HP / 196 Def Eviolite Porygon2: 145-172 (38.8 - 46.1%) -- 21.5% chance to 2HKO after Stealth Rock
252+ SpA Choice Specs Punk Rock Toxtricity Boomburst vs. 248 HP / 64+ SpD Eviolite Punk Rock Porygon2: 88-104 (23.5 - 27.8%) -- guaranteed 4HKO after Stealth Rock(Note that punk rock copy from Toxtricity can reduce a half of damage of sound)
Zygarde-10% @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Skitter Smack
- Extreme Speed
- Outrage
- Thousand Arrows
'Zygarde-10% is blessed with Thousand Arrows, a move widely regarded as the best offensive move in the game, making it a premier offensive threat in RarelyUsed'
Bug and Grass are 2 remain types which can resist Thousand Arrows, it will not be a good choice to use Bug type like Heracross and Golisopod. To deal with Grass type in RU or Zarude, consider the side effect of Outrage, Skitter Smack can OHKO Zarude(and beat Celebi in rare).
Outrage is the most powerful STAB, 2HKO most of things which resist Thousand Arrows, Extreme Speed beat scarfers and Noiven.
252 Atk Choice Band Zygarde-10% Skitter Smack vs. 0 HP / 0 Def Zarude: 368-436 (104.8 - 124.2%) -- guaranteed OHKO
Mantine @ Heavy-Duty Boots
Ability: Water Absorb
EVs: 248 HP / 252 Def / 8 Spe
Bold Nature
IVs: 0 Atk
- Defog
- Scald
- Roost
- Air Slash
Supporter 2, bulky water type, and hazards controller. Can absorb many powerful physical damage after choosing maximum physical defense and special damage thanks to high base. Because of the absence of haze and toxic, it may be seem as a set up starter from the opposite opinion, these pms like Suicune can be checked by Crobat.
252 Atk Zarude Power Whip vs. 248 HP / 252+ Def Mantine: 168-198 (45 - 53%) -- 28.9% chance to 2HKO
252 Atk Choice Band Zygarde-10% Thousand Arrows vs. 248 HP / 252+ Def Mantine: 166-196 (44.5 - 52.5%) -- 21.5% chance to 2HKO
252 Atk Sheer Force Darmanitan Flare Blitz vs. 248 HP / 252+ Def Mantine: 121-143 (32.4 - 38.3%) -- 98.2% chance to 3HKO
Cobalion @ Leftovers
Ability: Justified
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Flash Cannon
- Volt Switch
- Focus Blast
- Stealth Rock
Last supporter, Stealth Rock setter
Altrough SR is less valuable than before according to the Heavy-Duty Boots, but it is still necessary to have one to pressure further by combination with Knock Off. And steel type allow Cobalion to be a potential switch in against Dragalge and Toxtricity.
Volt Switch bring Obstagoon and Z10% into the field, and it sometimes check Zarude and Lucario thanks to its 108 speed base.
0 SpA Cobalion Focus Blast vs. 0 HP / 4 SpD Zarude: 246-290 (70 - 82.6%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Cobalion Focus Blast vs. 0 HP / 4 SpD Lucario: 318-374 (113.1 - 133%) -- guaranteed OHKO
Replay:
https://replay.pokemonshowdown.com/gen8ru-1267211239-unw67dh77leib5lm0kcqaf9qcyhjgn7pw
Proof:
Importable:
https://pokepast.es/3e168a59d2f15321
Descriptions:
Obstagoon @ Flame Orb
Ability: Guts
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Close Combat
- Facade
- Knock Off
- Parting Shot
The leader of this team, Obstagoon.
Overwhelming power thanks to Flame orb and Guts, can break most of walls with Knock Off+Facade.
Togekiss: 252+ Atk Guts Obstagoon Facade (140 BP) vs. 252 HP / 252+ Def Togekiss: 219-258 (58.5 - 68.9%) -- guaranteed 2HKO
Milotic: 252+ Atk Guts Obstagoon Facade (140 BP) vs. 252 HP / 252+ Def Milotic: 246-289 (62.4 - 73.3%) -- guaranteed 2HKO after Leftovers recovery
Porygon2: Eviolite wanna keep distance from Knock Off
Nice STAB coverage, only Klefki Cobalion and Diancie(rare in metagame) can resist Dark+Normal. Klefki and Diancie can be easily overloaded by Knock Off their leftovers, and killed with Close Combat when they are unhealthy. Cobalion usually has and only has one chance to switch in(consider the prediction of using CC), and similarly it is uncomfortable for Cobalion to lose its leftovers.
252+ Atk Guts Obstagoon Close Combat vs. 252 HP / 0 Def Cobalion: 270-318 (69.9 - 82.3%) -- guaranteed 2HKO after Leftovers recovery
Enough bulk, able to suffer the Outrage of CB Zygard-10%.
252 Atk Choice Band Zygarde-10% Outrage vs. 0 HP / 0 Def Obstagoon: 243-286 (74.3 - 87.4%) -- guaranteed 2HKO after burn damage
Enough fast, 289 is faster than 284(80+/Gardevoir Chandelure and Regidrago) but slower than Xurkitree(83+/291, but usually has scarf).
As a physical attacker, guts make it never worry about reducing power by being burn, but less the duration instead.
It need to be brought into the field with the aid of VoltTurn and Teleport users, or double switch in rare condition.
Crobat @ Heavy-Duty Boots
Ability: Infiltrator
EVs: 248 HP / 8 SpD / 252 Spe
Jolly Nature
- Brave Bird
- Toxic
- U-turn
- Roost
Supporter 1, Crobat is basicly the top speed tier in RU.
Poison+Flying is a good combination, which immune groud(except Zygard) and 4x resist grass and fighting. The Boots make it immune damage from Stealth Rock, provide more availability to switch in (but how can this bat to wear boots xd). Brave Bird is a powerful STAB move. U-turn bring Zygard10% and Obstagoon to field to break holes.
Able to switch in Zarude if both Porygon2 and Cobalion are unhealthy.
252 Atk Zarude Darkest Lariat vs. 248 HP / 0 Def Crobat: 159-187 (42.6 - 50.1%) -- 0.4% chance to 2HKO
0 Atk Crobat U-turn vs. 0 HP / 0 Def Zarude: 180-212 (51.2 - 60.3%) -- 90.6% chance to 2HKO after Leftovers recovery
Toxic is an uncommon choice, it can 'surprise' some pm annoying with status(like Rhyperior), and in addition of Infiltrator , is to check those Subtitute users especially Suicune. Also you can use Crobot to check Togekiss with Toxic(may be not confident in slow walls), just be care of Thunder Wave.
Porygon2 @ Eviolite
Ability: Trace
EVs: 248 HP / 196 Def / 64 SpD
Calm Nature
IVs: 0 Atk
- Ice Beam
- Recover
- Toxic
- Teleport
Thanks to Eviolite and Recover, P2 can wall attacks from both physical and special site. The EVs alocation is meaningless, but works well. Ice Beam beats Thunderus/Zygard10% and Toxic punish those who wanna set up or wanna set/remove hazards or even wanna make P2 toxic. Teleport is the keep point to bring Obstagoon and Zygard into the field.
Some calcs:
252 Atk Zarude Close Combat vs. 248 HP / 196 Def Eviolite Porygon2: 148-176 (39.6 - 47.1%) -- guaranteed 3HKO
252 Atk Choice Band Zygarde-10% Outrage vs. 248 HP / 196 Def Eviolite Porygon2: 145-172 (38.8 - 46.1%) -- 21.5% chance to 2HKO after Stealth Rock
252+ SpA Choice Specs Punk Rock Toxtricity Boomburst vs. 248 HP / 64+ SpD Eviolite Punk Rock Porygon2: 88-104 (23.5 - 27.8%) -- guaranteed 4HKO after Stealth Rock(Note that punk rock copy from Toxtricity can reduce a half of damage of sound)
Zygarde-10% @ Choice Band
Ability: Aura Break
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Skitter Smack
- Extreme Speed
- Outrage
- Thousand Arrows
'Zygarde-10% is blessed with Thousand Arrows, a move widely regarded as the best offensive move in the game, making it a premier offensive threat in RarelyUsed'
Bug and Grass are 2 remain types which can resist Thousand Arrows, it will not be a good choice to use Bug type like Heracross and Golisopod. To deal with Grass type in RU or Zarude, consider the side effect of Outrage, Skitter Smack can OHKO Zarude(and beat Celebi in rare).
Outrage is the most powerful STAB, 2HKO most of things which resist Thousand Arrows, Extreme Speed beat scarfers and Noiven.
252 Atk Choice Band Zygarde-10% Skitter Smack vs. 0 HP / 0 Def Zarude: 368-436 (104.8 - 124.2%) -- guaranteed OHKO
Mantine @ Heavy-Duty Boots
Ability: Water Absorb
EVs: 248 HP / 252 Def / 8 Spe
Bold Nature
IVs: 0 Atk
- Defog
- Scald
- Roost
- Air Slash
Supporter 2, bulky water type, and hazards controller. Can absorb many powerful physical damage after choosing maximum physical defense and special damage thanks to high base. Because of the absence of haze and toxic, it may be seem as a set up starter from the opposite opinion, these pms like Suicune can be checked by Crobat.
252 Atk Zarude Power Whip vs. 248 HP / 252+ Def Mantine: 168-198 (45 - 53%) -- 28.9% chance to 2HKO
252 Atk Choice Band Zygarde-10% Thousand Arrows vs. 248 HP / 252+ Def Mantine: 166-196 (44.5 - 52.5%) -- 21.5% chance to 2HKO
252 Atk Sheer Force Darmanitan Flare Blitz vs. 248 HP / 252+ Def Mantine: 121-143 (32.4 - 38.3%) -- 98.2% chance to 3HKO
Cobalion @ Leftovers
Ability: Justified
EVs: 248 HP / 8 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Flash Cannon
- Volt Switch
- Focus Blast
- Stealth Rock
Last supporter, Stealth Rock setter
Altrough SR is less valuable than before according to the Heavy-Duty Boots, but it is still necessary to have one to pressure further by combination with Knock Off. And steel type allow Cobalion to be a potential switch in against Dragalge and Toxtricity.
Volt Switch bring Obstagoon and Z10% into the field, and it sometimes check Zarude and Lucario thanks to its 108 speed base.
0 SpA Cobalion Focus Blast vs. 0 HP / 4 SpD Zarude: 246-290 (70 - 82.6%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Cobalion Focus Blast vs. 0 HP / 4 SpD Lucario: 318-374 (113.1 - 133%) -- guaranteed OHKO
Replay:
https://replay.pokemonshowdown.com/gen8ru-1267211239-unw67dh77leib5lm0kcqaf9qcyhjgn7pw
Proof:
