In Pokémon games, type effectiveness influences the damage of your Pokémon’s move, depending on the type of the attacking move, and the type(s) of the opposing Pokémon.
Type effectiveness in Pokémon GO corresponds to a specific modifier, which can have a positive or negative impact to the overall damage of the move. It is similar to the game Rock-Paper-Scissors, wherein each type has both type(s) that it is weak and strong against.
There are four types of effectiveness with its corresponding modifiers:
- Neutral – no increase/decrease
- Super Effective – it increases damage (×1.4) sometimes called Weakness
- Not very Effective – it reduces damage (×0.714) sometimes called Resistance
- Immune – it greatly reduces damage (×0.51)
When a Defender has two types, it combines the effectiveness against both types. Multiplying both effectiveness modifiers of each type against the attacking type will determine the combined effectiveness of the move. Consider these scenarios when battling against Charizard, a Fire Pokémon.
- When Ice Shard, an Ice move, is used against Charizard, even though Ice is not very effective against Fire, it is super effective against , canceling out each other to have neutral effectiveness. However, because of the modifier set in Pokémon GO, in this scenario, there will be a minimal decrease in damage by 0.04% (1.4 × 0.714 = 0.9996).
- When Mud Slap, a Ground move, is used against Charizard, while Ground is super effective against Fire, is immune to Ground. In this scenario, because of the combined modifiers, the game will treat it as if it’s not very effective (1.4 × 0.51 = 0.714) .
- When Rock Throw, a Rock move, is used against Charizard, both Fire and are super effective against Rock, which will yield almost twice the damage (1.4 × 1.4 = 1.96).
- On the other hand, when Bug Bite, a Bug move, is used against Charizard, both Fire and are not very effective against Bug, which will cut the damage by almost half (0.714 × 0.714 = 0.509796).
Type Effectiveness Chart
Type Effectiveness Charts or Type Charts are used to determine the effectiveness of each type. It shows the modifier for each type in relation to a certain attacking type. The type chart below shows super effective as green, not very effective as red, and immune as maroon. The rows are the attacking type, while the columns are the defending type.
Trivia
Trivia- There is no type that Normal is super effective against. At the same time, Normal has no resistances, but does have one immunity.
- The only type that Ice resists is Ice itself.
- Ground and Fighting have the most types that they are super effective against, with 5.
- Rock and Grass have the most weaknesses, with 5.
- Normal and Electric have the least weaknesses, with only one.
- Steel has the most resistances, with 10.
 of the opposing Pokémon. Type effectiveness corresponds to a specific modifier, which can have a positive or negative impact to the overall damage of the move.){kind=link}