This thread is meant to be a resource to newer players unfamiliar with the most common Terastallization ("Tera") types of Pokemon relevant in the NU metagame, as per the current viability rankings. Please note that in any given matchup or situation, any Tera type can end up being the perfect one for the job; this list is just meant to represent the most common Tera types in the metgame. If you have any suggestions or questions, feel free to PM me on Smogon, Discord, or PS!. Types are listed in general order of most common to least common.
S Rank
 Flamigo - Fighting Flying
 Flamigo - Fighting Flying
 Flygon - Steel Bug Fire Ghost
 Flygon - Steel Bug Fire Ghost
 Munkidori - Poison Psychic Fighting Flying Ghost
 Munkidori - Poison Psychic Fighting Flying Ghost
A+
 Breloom - Normal Electric
 Breloom - Normal Electric
 Bronzong - Fairy Water Ghost Electric Fighting
 Bronzong - Fairy Water Ghost Electric Fighting
 Chandelure - Grass Fire Ghost Water
 Chandelure - Grass Fire Ghost Water
 Copperajah - Water Steel Poison Ghost
 Copperajah - Water Steel Poison Ghost
 Incineroar - Fairy Ghost Poison Grass
 Incineroar - Fairy Ghost Poison Grass
 Rhyperior - Dragon Water Steel Fairy
 Rhyperior - Dragon Water Steel Fairy
 Scrafty - Poison Fairy
 Scrafty - Poison Fairy
 Vaporeon - Fairy Poison Dark Ghost
 Vaporeon - Fairy Poison Dark Ghost
A
 Basculegion - Water Ghost Grass
 Basculegion - Water Ghost Grass
 Cinccino - Electric Ghost Dark
 Cinccino - Electric Ghost Dark
 Klefki - Water Ghost Grass
 Klefki - Water Ghost Grass
 Sylveon - Water Steel
 Sylveon - Water Steel
 Tauros-Paldea-Aqua - Water Steel Fighting Electric
 Tauros-Paldea-Aqua - Water Steel Fighting Electric
 Tsareena - Poison Fairy
 Tsareena - Poison Fairy
A-
 Altaria - Steel Fairy Ghost
 Altaria - Steel Fairy Ghost
 Amoonguss - Fairy Water Ghost
 Amoonguss - Fairy Water Ghost
 Articuno-Galar - Steel Poison
 Articuno-Galar - Steel Poison
 Barraskewda - Fighting Water
 Barraskewda - Fighting Water
 Diancie - Grass Fairy Water Flying Steel
 Diancie - Grass Fairy Water Flying Steel
 Drednaw - Fairy Water Ghost
 Drednaw - Fairy Water Ghost
 Kilowattrel - Fairy Water Grass Ice
 Kilowattrel - Fairy Water Grass Ice
 Raikou - Water Fairy Flying Ghost
 Raikou - Water Fairy Flying Ghost
 Slowbro-Galar - Poison Ghost Water
 Slowbro-Galar - Poison Ghost Water
 Swampert - Fairy Poison Dark
 Swampert - Fairy Poison Dark
 Wo-Chien - Poison Ghost Water
 Wo-Chien - Poison Ghost Water
B+
 Bellibolt - Poison Water Fairy
 Bellibolt - Poison Water Fairy
 Cramorant - Electric Ghost Fairy Poison
 Cramorant - Electric Ghost Fairy Poison
 Decidueye - Water Fairy
 Decidueye - Water Fairy
 Dudunsparce - Poison Ghost
 Dudunsparce - Poison Ghost
 Gligar - Grass Water Ghost
 Gligar - Grass Water Ghost
 Hariyama - Steel Fairy
 Hariyama - Steel Fairy
 Houndstone - Ghost Fairy
 Houndstone - Ghost Fairy
 Scream Tail - Normal Ghost Steel
 Scream Tail - Normal Ghost Steel
 Scyther - Grass Electric Ground
 Scyther - Grass Electric Ground
 Tauros-Paldea-Blaze - Fire Steel Ghost
 Tauros-Paldea-Blaze - Fire Steel Ghost
 Toxicroak - Dark Flying
 Toxicroak - Dark Flying
 Toxtricity - Poison Electric Normal
 Toxtricity - Poison Electric Normal
 Uxie - Fairy Steel
 Uxie - Fairy Steel
B
 Duraludon - Flying Fairy Fighting
 Duraludon - Flying Fairy Fighting
 Goodra - Dragon Water
 Goodra - Dragon Water
 Infernape - Fighting Fire Electric Dark
 Infernape - Fighting Fire Electric Dark
 Meloetta - Fairy Fighting Ghost
 Meloetta - Fairy Fighting Ghost
 Ninetales-Alola - Ghost Ground
 Ninetales-Alola - Ghost Ground
 Overqwil - Water Flying Dragon Ghost
 Overqwil - Water Flying Dragon Ghost
 Thwackey - Grass Electric
 Thwackey - Grass Electric
 Tornadus - Steel Ground
 Tornadus - Steel Ground
B-
 Arcanine - Normal
 Arcanine - Normal
 Avalugg - Water Fairy Fighting
 Avalugg - Water Fairy Fighting
 Brambleghast - Ghost Fairy Dark
 Brambleghast - Ghost Fairy Dark
 Ditto - Steel Water Ghost
 Ditto - Steel Water Ghost
 Grafaiai - Dark Flying
 Grafaiai - Dark Flying
 Heracross - Normal Dark Grass
 Heracross - Normal Dark Grass
 Inteleon - Water Electric
 Inteleon - Water Electric
 Oricorio-Pa'u - Steel Fairy Fighting
 Oricorio-Pa'u - Steel Fairy Fighting
 Sandslash-Alola - Fairy Ground Water
 Sandslash-Alola - Fairy Ground Water
 Torterra - Fire Ghost
 Torterra - Fire Ghost
C Rank
 Ambipom - Normal Ice Ghost
 Ambipom - Normal Ice Ghost
 Bastiodon - Fairy Ghost Poison
 Bastiodon - Fairy Ghost Poison
 Braviary-Hisui - Flying Fire
 Braviary-Hisui - Flying Fire
 Brute Bonnet - Dark Fighting
 Brute Bonnet - Dark Fighting
 Hitmonlee - Dark Psychic Fire
 Hitmonlee - Dark Psychic Fire
 Porygon2 - Fairy Poison
 Porygon2 - Fairy Poison
 Salazzle - Grass Ghost
 Salazzle - Grass Ghost
 Scovillain - Fire
 Scovillain - Fire
 Staraptor - Normal Flying
 Staraptor - Normal Flying
 Tentacruel - Dark Fairy
 Tentacruel - Dark Fairy
 Venusaur - Fire Ground
 Venusaur - Fire Ground
 Whimsicott - Fairy Steel Water
 Whimsicott - Fairy Steel Water
				
			S Rank
 Flamigo - Fighting Flying
 Flamigo - Fighting Flying Flygon - Steel Bug Fire Ghost
 Flygon - Steel Bug Fire Ghost Munkidori - Poison Psychic Fighting Flying Ghost
 Munkidori - Poison Psychic Fighting Flying GhostA+
 Breloom - Normal Electric
 Breloom - Normal Electric Bronzong - Fairy Water Ghost Electric Fighting
 Bronzong - Fairy Water Ghost Electric Fighting Chandelure - Grass Fire Ghost Water
 Chandelure - Grass Fire Ghost Water Copperajah - Water Steel Poison Ghost
 Copperajah - Water Steel Poison Ghost Incineroar - Fairy Ghost Poison Grass
 Incineroar - Fairy Ghost Poison Grass Rhyperior - Dragon Water Steel Fairy
 Rhyperior - Dragon Water Steel Fairy Scrafty - Poison Fairy
 Scrafty - Poison Fairy Vaporeon - Fairy Poison Dark Ghost
 Vaporeon - Fairy Poison Dark GhostA
 Basculegion - Water Ghost Grass
 Basculegion - Water Ghost Grass Cinccino - Electric Ghost Dark
 Cinccino - Electric Ghost Dark Klefki - Water Ghost Grass
 Klefki - Water Ghost Grass Sylveon - Water Steel
 Sylveon - Water Steel Tauros-Paldea-Aqua - Water Steel Fighting Electric
 Tauros-Paldea-Aqua - Water Steel Fighting Electric Tsareena - Poison Fairy
 Tsareena - Poison FairyA-
 Altaria - Steel Fairy Ghost
 Altaria - Steel Fairy Ghost Amoonguss - Fairy Water Ghost
 Amoonguss - Fairy Water Ghost Articuno-Galar - Steel Poison
 Articuno-Galar - Steel Poison Barraskewda - Fighting Water
 Barraskewda - Fighting Water Diancie - Grass Fairy Water Flying Steel
 Diancie - Grass Fairy Water Flying Steel Drednaw - Fairy Water Ghost
 Drednaw - Fairy Water Ghost Kilowattrel - Fairy Water Grass Ice
 Kilowattrel - Fairy Water Grass Ice Raikou - Water Fairy Flying Ghost
 Raikou - Water Fairy Flying Ghost Slowbro-Galar - Poison Ghost Water
 Slowbro-Galar - Poison Ghost Water Swampert - Fairy Poison Dark
 Swampert - Fairy Poison Dark Wo-Chien - Poison Ghost Water
 Wo-Chien - Poison Ghost WaterB+
 Bellibolt - Poison Water Fairy
 Bellibolt - Poison Water Fairy Cramorant - Electric Ghost Fairy Poison
 Cramorant - Electric Ghost Fairy Poison Decidueye - Water Fairy
 Decidueye - Water Fairy Dudunsparce - Poison Ghost
 Dudunsparce - Poison Ghost Gligar - Grass Water Ghost
 Gligar - Grass Water Ghost Hariyama - Steel Fairy
 Hariyama - Steel Fairy Houndstone - Ghost Fairy
 Houndstone - Ghost Fairy Scream Tail - Normal Ghost Steel
 Scream Tail - Normal Ghost Steel Scyther - Grass Electric Ground
 Scyther - Grass Electric Ground Tauros-Paldea-Blaze - Fire Steel Ghost
 Tauros-Paldea-Blaze - Fire Steel Ghost Toxicroak - Dark Flying
 Toxicroak - Dark Flying Toxtricity - Poison Electric Normal
 Toxtricity - Poison Electric Normal Uxie - Fairy Steel
 Uxie - Fairy SteelB
 Duraludon - Flying Fairy Fighting
 Duraludon - Flying Fairy Fighting Goodra - Dragon Water
 Goodra - Dragon Water Infernape - Fighting Fire Electric Dark
 Infernape - Fighting Fire Electric Dark Meloetta - Fairy Fighting Ghost
 Meloetta - Fairy Fighting Ghost Ninetales-Alola - Ghost Ground
 Ninetales-Alola - Ghost Ground Overqwil - Water Flying Dragon Ghost
 Overqwil - Water Flying Dragon Ghost Thwackey - Grass Electric
 Thwackey - Grass Electric Tornadus - Steel Ground
 Tornadus - Steel GroundB-
 Arcanine - Normal
 Arcanine - Normal Avalugg - Water Fairy Fighting
 Avalugg - Water Fairy Fighting Brambleghast - Ghost Fairy Dark
 Brambleghast - Ghost Fairy Dark Ditto - Steel Water Ghost
 Ditto - Steel Water Ghost Grafaiai - Dark Flying
 Grafaiai - Dark Flying Heracross - Normal Dark Grass
 Heracross - Normal Dark Grass Inteleon - Water Electric
 Inteleon - Water Electric Oricorio-Pa'u - Steel Fairy Fighting
 Oricorio-Pa'u - Steel Fairy Fighting Sandslash-Alola - Fairy Ground Water
 Sandslash-Alola - Fairy Ground Water Torterra - Fire Ghost
 Torterra - Fire GhostC Rank
 Ambipom - Normal Ice Ghost
 Ambipom - Normal Ice Ghost Bastiodon - Fairy Ghost Poison
 Bastiodon - Fairy Ghost Poison Braviary-Hisui - Flying Fire
 Braviary-Hisui - Flying Fire Brute Bonnet - Dark Fighting
 Brute Bonnet - Dark Fighting Hitmonlee - Dark Psychic Fire
 Hitmonlee - Dark Psychic Fire Porygon2 - Fairy Poison
 Porygon2 - Fairy Poison Salazzle - Grass Ghost
 Salazzle - Grass Ghost Scovillain - Fire
 Scovillain - Fire Staraptor - Normal Flying
 Staraptor - Normal Flying Tentacruel - Dark Fairy
 Tentacruel - Dark Fairy Venusaur - Fire Ground
 Venusaur - Fire Ground Whimsicott - Fairy Steel Water
 Whimsicott - Fairy Steel Water
			
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 Mienshao -  Bombirdier -
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