>>29510582Grass: Ferrothorn is the Grass-type with the least amount of weaknesses, with 2 (Fighting and Fire)
Poison:
>>29511106Fire: Is the type that can do the highest damage of all the existing types. It can do x8 damage to Dry Skin Paras line.
Flying:
Water: Has the highest amount of Pokémon than any other type.
Bug: All Pokémon with this type will never lose it (Drapion being an exception)
Normal: Until Gen VI, it was the only type that was exclusively first type. Most moves are Normal-type, with 190 being of that type.
Electric: ORAS added a Mega of each type except Electric.
Ground: Before Gen V, all starters could learn Earthquake.
Fighting: With Psychic, it was the only type whose moves didn't change category.
Psychic: Once it was the most broken type, with being immune to Ghost, Bug was it only weakness but it had low BP moves, and Dark didn't exist at that time.
Rock: Of all the types, Rock is the only that has more Super Effective than Resistor. Because of this if exists a Pokémon of all typings it will only be weak to Rock
Ice: Ice is the type with the least amount of resistances: ITSELF.
Ghost: No moves of this type has less than 100% accuracy.
Dragon: It was the only type that didn't received a new type in Gen VI.
Steel: Magnemite and Togedemaru lines are the Pojémon with the highest amount of resistances, with 10 as of Gen VII.
Dark: It was the only type whose ALL attacking moves changed category: from Special to Physical
Fairy: Of all the existing types, it has the highest average SpD stat.