ABOUT POKEMON TYPES
Types are properties for Pokémon and their moves. As of Generation VI, there are 18 types, as listed to the right. Most of these were introduced during Generation I, but the Dark and Steel types were introduced in Generation II and the Fairy type was introduced in Generation VI. A unique ??? type also existed from Generations II through IV. During Generation I, types were occasionally referred to as elements. A Pokémon may have either one or two types: For instance, Charmander is a Fire type, while Bulbasaur is both a Grass type and a Poison type. With the current 18-type system, there are 324 possible ways to assign types to Pokémon, with 171 unique combinations. As of Generation VII, 146 different type combinations have been used. Similar to Pokémon, Pokéstar Studios opponents also have types.
Type defenses

The full type chart here displays the strengths and weaknesses of each type.

Def/Atk
½ 0 ½
½ ½ 2 2 2 ½ ½ 2
2 ½ ½ 2 2 ½
2 ½ ½ 0 2 ½
½ 2 ½ ½ 2 ½ ½ 2 ½ ½
½ ½ 2 ½ 2 2 2 ½
2 2 ½ ½ ½ ½ 2 0 2 2 ½
2 ½ ½ ½ ½ 0 2
2 2 ½ 2 0 ½ 2 2
½ 2 2 2 ½ ½
2 2 ½ 0 ½
½ 2 ½ ½ ½ 2 ½ 2 ½ ½
2 2 ½ ½ 2 2 ½
0 2 2 ½
2 ½ 0
½ 2 2 ½ ½
½ ½ ½ 2 2 ½ 2
½ 2 ½ 2 2 ½
Chart key: 0 No effect (0%), ½ Not very effective (50%), – Normal (100%), 2 Super-effective (200%)