Type Effectiveness

Every Pokémon and move has a type. Types come with strengths and weaknesses on both offense and defense. In battle, using a move with a type advantage deals extra damage; using one at a disadvantage deals less.

• Type advantage: a single advantage deals 2× damage (e.g., Water → Ground). Two advantages stack to 4×. You’ll see “It’s super effective!”.
• Type disadvantage: a single disadvantage deals ½× damage; two stack to ¼×. You’ll see “It’s not very effective…”.
• Immunity: some type matchups do 0× damage (no effect).
• STAB (Same-Type Attack Bonus): if a Pokémon uses a move that matches its own type, the move gets a 1.5× boost. This multiplies with matchups—e.g., a Water-type using a Water move vs Ground/Rock: 2× × 2× × 1.5× = 6×.

The grid below shows every matchup: attackers run down the left (↓) and defenders across the top (→). Click any type to see its moves and Pokémon.