Damage

The damage done by a move can be altered, both by increasing and decreasing, by a variety of effects.

Super effective

When a move is super effective, it does double the damage it would normally do. For example, a move like Megahorn used against a Template:Type2 Pokémon will be super effective because Template:Type2 moves are super effective against Psychic-types. This effect can stack up; for example, a Pokémon that is Rock/Ground and is hit by a Template:Type2 move like Surf will be damaged four times as much by the move as it would normally be, because both Rock and Ground Pokémon are weak to Water moves.

Not very effective

When a move is not very effective, it does half of the damage it would do. This works exactly like super effective moves, and can stack up. For example, a Ground/Rock Pokémon will be damaged by a quarter of the amount by a Template:Type2 move. Likewise, a Normal/Flying Pokémon hit by a Template:Type2 move will be damaged normally, as the super-effectiveness of Fighting against Normal is canceled out by the not-very-effectiveness of Fighting against Flying.

Critical hit

A move will sometimes get a critical hit against another Pokémon, some moves more than others. This will double the damage done after super effective/not very effective calculations occur, leading to the ability for a doubly-super effective move that gets a critical hit to do a whopping eight times as much damage as it would.

Same-type attack bonus

Main article: Same-type attack bonus

A move used by a Pokémon that is of the same type as the move itself will do 150% of its normal damage, such as a Template:Type2 move used by a Fire-type Pokémon. Dual-typed Pokémon will receive this bonus for both of their types, and a Pokémon whose type can change in-battle will receive the bonus for whatever type they are when they make the move.

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