Well I decided to post a universal threat list which contains most commonly used pokes in the OU environment and their counters. All of the Information is compiled from Smogon and all I have done is put it all into one place so most of the credit goes to smogon. Also some of the pokemon may be in the wrong places if so then just pm me. I will likely update it soon with more threats and their respective counters. Also the format is:
Pokemon: Counters
Offensive List
Abomasnow: Scizor, Metagross, Forrteres, Bronzong, Moltres, Gyarados
Azelf: Spiritomb, Cresselia, Blissey, Tyarnitar, Weavile
Breloom: Celebi, Hypno, Cresselia, Zapdos, Dugtrio
Celebi: Weavile, Tyranitar, Skarmory, Scizor
Dugtrio: Scizor, Porygon2
Dragonite: Weavile, Mamoswine, Cresselia, Hippowdon,
Electivire: Gardevoir, Swampert, Cresselia, Rotom Forms, Dusknoir, Spiritomb
Empoleon: Hitmontop, Vapoereon, Tentacruel, Blissey,
Flygon: Hippowodn, Gliscor, Cresselia, Suicune, Vapoeron, Porygon2
Gengar: Scizor, Spiritomb, Blissey, Heracross
Gliscor: Swampert, Gyarados, Cresselia, Bulky Water
Gyarados: Porygon2, Cresselia, Celebi, Tangrowth, Milotic, Slowbro, Suicune, Starmie, Rotom Forms
Heatran: Milotic, Slowbro, Suicune, Swampert, Tentacruel, Blissey, Snorlax, Hariyama, Tyranitar
Heracross: Nidoqueen, Hitmontop, Dusknoir, Rotom-H and A, Weezing, Gliscor
Infernape: Suicune, Starmie, Tentacruel, Latias, Cresselia,
Jirachi: Tyarnitar, Blissey, Magnezone, Snorlax, Swampert, Heatran,
Kingdra: Empoleon, Celebi, Registeel, Bulky Water
Latias: Tyarnitar, Scizor, Blissey, Cresselia, Vaporeon, Metagross
Lucario: Gliscor, Gyarados, Celebi, Hippowodn, Cresselia, Dusknoir,
Machamp: Rotom Forms, Spiritomb, Dusknoir, Celebi, Cresselia, Slowbro
Magnezone: Jolteon, Electivire, Dugtrio, Heatran, Blissey, Snorlax, Gardevoir, Lanturn, Latias
Mamoswine: Bronzong, Scizor, Weezing, Cresselia, Mesprit, Uxie
Metagross: Zapdos, Rotom-A, Swampert, Hippowodn, Suicune, Slowbro, Vaporeon
Ninjask: Skarmory, Weezing, Suicune, Hippowdon, Mamoswine
Porygon-Z: Blissey, Spiritomb, Scizor, Lucario, Metagross
Rhyperior: Bronzong, Swampert, Hippowdon, Torterra, Breloom, Flygon,
Roserade: Blissey, Heatran, Moltres, Zapdos, Togekiss, Tentacruel
Rotom-A: Blissey, Specs Tyranitar, Raikou, Jirachi, Jolteon
Salamence: Bronzong, Rhyperior, Gliscor, Porygon2, Donphan, Empoleon,
Scizor: Rotom-H, Zapdos, Gyarados, Shedninja, Moltres, Charizard, Heatran, Aracanine
Snorlax: Machamp, Gallade, Hariyama, CB Heracross, Suicune, Rhyperior, Regirock
Starmie: Blissey, Snorlax, Lanturn, Latias, Dusknoir, Spiritomb, Rotom Forms
Togekiss: Dragonite, Jolteon, Bronzong, Blissey, Cresselia, Zapdos, Lanturn
Tyranitar: Scizor, Bronzong, Machamp, Hariyama, Bulky Grounds
Weavile: Forretres, Bronzong, Metagross, Scizor, Heracross, Swampert
Yanmega: Blissey, Snorlax, Regiice, Heatran, Magnezone, Empoleon, Zapdos
Zapdos: Blissey, Electivire, Jolteon, Lanturn, Latias, Tyranitar
Defensive List
Blissey - 255/10/135
Machamp. Lucario, Electivire, Heracross, Rhyperior, Snorlax, Metgross
Bronzong - 67/116/116
Magnezone, Rotom Forms, Suicune, Moltres, Charizard, Heatran, Infernape
Cradily - 86/97/107
Skarmory, Heatran, Lucario, Heracross, Hariyama, Scizor, Metagross, Jirachi
Cresselia - 120/120/130
Tyranitar, Heracross, Weavile, Scizor, Houndoom, Metagross, Blissey
Donphan - 90/120/60
Swampert, Suicune, Milotic, Tangrowth, Celebi, Bronzong, Cresselia, Bulky Waters
Dusknoir - 45/135/135
Tyranitar, Weavile, Metagross, Heracross, Spiritomb
Forretress - 75/140/60
Rotom-H, Gyarados, Skarmory, Zapdos, Moltres, Heatran
Hariyama - 144/60/60
Cresselia, Celebi, Azelf, Dusknoir, Weezing
Hippowdon - 108/118/72
Bronzong, Skarmory, Gyarados, Celebi,
Ludicolo - 80/70/100
Toxicroak, Tentacruel, Heracross, Skarmory, Cresselia
Mesprit - 80/105/105
Blissey, Snorlax, Cresselia, Tyranitar, Weavile, Heracross, Scizor, Metagross
Milotic- 95/79/125
Zapdos, Electivire, Jolteon, Ludivolo, Starmie, Empoleon, Blissey, Cresselia
Porygon2 - 85/90/95
Heracross, Machamp, Hariyama, Hitmonlee, Tyraintar, Metagross, Electivire, Blissey
Skarmory - 65/140/70
Heatran, Magnezone, Probopass, Lucario, Tyranitar, Rhyperior, Gyarados,
Slowbro - 95/110/80
Ludicolo, Celebi, Shaymin, Gyarados, Suicune, Starmie, Blissey, Empoleon
Spiritomb - 50/108/108
Heracross, Lucario, Heatran, Houndoom, Blissey, Miltank, Kangskhan
Swampert - 100/90/90
Ludicolo, Bulky Grass Types, Cresselia, Uxie, Mesprit, Latias, Weezing, Zapdos,
Tentacruel - 80/65/120
Swampert, Gastrodon, Empoleon, Metagross, Jirachi, Rotom Forms, Latias
Umbreon - 95/110/130
Heracross, Lucario, Toxicroak, Metagross, Scizor
Vaporeon - 130/60/95
Ludicolo, Empoleon, Vaporeon, Celebi, Cresselia, Blissey, Kindra, Gardevoir, Porygon2
Weezing- 65/120/70
Heatran, Houndoom, Ninetales, Azelf, Cresselia, Gardevoir, Alakazam, Slowbro
Pokemon: Counters
Offensive List
Abomasnow: Scizor, Metagross, Forrteres, Bronzong, Moltres, Gyarados
Azelf: Spiritomb, Cresselia, Blissey, Tyarnitar, Weavile
Breloom: Celebi, Hypno, Cresselia, Zapdos, Dugtrio
Celebi: Weavile, Tyranitar, Skarmory, Scizor
Dugtrio: Scizor, Porygon2
Dragonite: Weavile, Mamoswine, Cresselia, Hippowdon,
Electivire: Gardevoir, Swampert, Cresselia, Rotom Forms, Dusknoir, Spiritomb
Empoleon: Hitmontop, Vapoereon, Tentacruel, Blissey,
Flygon: Hippowodn, Gliscor, Cresselia, Suicune, Vapoeron, Porygon2
Gengar: Scizor, Spiritomb, Blissey, Heracross
Gliscor: Swampert, Gyarados, Cresselia, Bulky Water
Gyarados: Porygon2, Cresselia, Celebi, Tangrowth, Milotic, Slowbro, Suicune, Starmie, Rotom Forms
Heatran: Milotic, Slowbro, Suicune, Swampert, Tentacruel, Blissey, Snorlax, Hariyama, Tyranitar
Heracross: Nidoqueen, Hitmontop, Dusknoir, Rotom-H and A, Weezing, Gliscor
Infernape: Suicune, Starmie, Tentacruel, Latias, Cresselia,
Jirachi: Tyarnitar, Blissey, Magnezone, Snorlax, Swampert, Heatran,
Kingdra: Empoleon, Celebi, Registeel, Bulky Water
Latias: Tyarnitar, Scizor, Blissey, Cresselia, Vaporeon, Metagross
Lucario: Gliscor, Gyarados, Celebi, Hippowodn, Cresselia, Dusknoir,
Machamp: Rotom Forms, Spiritomb, Dusknoir, Celebi, Cresselia, Slowbro
Magnezone: Jolteon, Electivire, Dugtrio, Heatran, Blissey, Snorlax, Gardevoir, Lanturn, Latias
Mamoswine: Bronzong, Scizor, Weezing, Cresselia, Mesprit, Uxie
Metagross: Zapdos, Rotom-A, Swampert, Hippowodn, Suicune, Slowbro, Vaporeon
Ninjask: Skarmory, Weezing, Suicune, Hippowdon, Mamoswine
Porygon-Z: Blissey, Spiritomb, Scizor, Lucario, Metagross
Rhyperior: Bronzong, Swampert, Hippowdon, Torterra, Breloom, Flygon,
Roserade: Blissey, Heatran, Moltres, Zapdos, Togekiss, Tentacruel
Rotom-A: Blissey, Specs Tyranitar, Raikou, Jirachi, Jolteon
Salamence: Bronzong, Rhyperior, Gliscor, Porygon2, Donphan, Empoleon,
Scizor: Rotom-H, Zapdos, Gyarados, Shedninja, Moltres, Charizard, Heatran, Aracanine
Snorlax: Machamp, Gallade, Hariyama, CB Heracross, Suicune, Rhyperior, Regirock
Starmie: Blissey, Snorlax, Lanturn, Latias, Dusknoir, Spiritomb, Rotom Forms
Togekiss: Dragonite, Jolteon, Bronzong, Blissey, Cresselia, Zapdos, Lanturn
Tyranitar: Scizor, Bronzong, Machamp, Hariyama, Bulky Grounds
Weavile: Forretres, Bronzong, Metagross, Scizor, Heracross, Swampert
Yanmega: Blissey, Snorlax, Regiice, Heatran, Magnezone, Empoleon, Zapdos
Zapdos: Blissey, Electivire, Jolteon, Lanturn, Latias, Tyranitar
Defensive List
Blissey - 255/10/135
Machamp. Lucario, Electivire, Heracross, Rhyperior, Snorlax, Metgross
Bronzong - 67/116/116
Magnezone, Rotom Forms, Suicune, Moltres, Charizard, Heatran, Infernape
Cradily - 86/97/107
Skarmory, Heatran, Lucario, Heracross, Hariyama, Scizor, Metagross, Jirachi
Cresselia - 120/120/130
Tyranitar, Heracross, Weavile, Scizor, Houndoom, Metagross, Blissey
Donphan - 90/120/60
Swampert, Suicune, Milotic, Tangrowth, Celebi, Bronzong, Cresselia, Bulky Waters
Dusknoir - 45/135/135
Tyranitar, Weavile, Metagross, Heracross, Spiritomb
Forretress - 75/140/60
Rotom-H, Gyarados, Skarmory, Zapdos, Moltres, Heatran
Hariyama - 144/60/60
Cresselia, Celebi, Azelf, Dusknoir, Weezing
Hippowdon - 108/118/72
Bronzong, Skarmory, Gyarados, Celebi,
Ludicolo - 80/70/100
Toxicroak, Tentacruel, Heracross, Skarmory, Cresselia
Mesprit - 80/105/105
Blissey, Snorlax, Cresselia, Tyranitar, Weavile, Heracross, Scizor, Metagross
Milotic- 95/79/125
Zapdos, Electivire, Jolteon, Ludivolo, Starmie, Empoleon, Blissey, Cresselia
Porygon2 - 85/90/95
Heracross, Machamp, Hariyama, Hitmonlee, Tyraintar, Metagross, Electivire, Blissey
Skarmory - 65/140/70
Heatran, Magnezone, Probopass, Lucario, Tyranitar, Rhyperior, Gyarados,
Slowbro - 95/110/80
Ludicolo, Celebi, Shaymin, Gyarados, Suicune, Starmie, Blissey, Empoleon
Spiritomb - 50/108/108
Heracross, Lucario, Heatran, Houndoom, Blissey, Miltank, Kangskhan
Swampert - 100/90/90
Ludicolo, Bulky Grass Types, Cresselia, Uxie, Mesprit, Latias, Weezing, Zapdos,
Tentacruel - 80/65/120
Swampert, Gastrodon, Empoleon, Metagross, Jirachi, Rotom Forms, Latias
Umbreon - 95/110/130
Heracross, Lucario, Toxicroak, Metagross, Scizor
Vaporeon - 130/60/95
Ludicolo, Empoleon, Vaporeon, Celebi, Cresselia, Blissey, Kindra, Gardevoir, Porygon2
Weezing- 65/120/70
Heatran, Houndoom, Ninetales, Azelf, Cresselia, Gardevoir, Alakazam, Slowbro