STAB in Pokémon means Same Type Attack Bonus. It’s a damage boost a move gets when the move’s type matches the Pokémon using it, usually raising the move’s power by 50% or 1.5x.

Quick example

If a Fire-type Pokémon uses a Fire-type move like Ember, that move gets STAB and hits harder than usual. Dual-type Pokémon can get STAB from moves matching either of their types.

Why it matters

  • It helps Pokémon use their own typing more effectively.
  • It often makes same-type moves the best choice in battle.
  • Some fixed-damage moves do not benefit from STAB.

If you want, I can also give you a very simple beginner example or explain how STAB works with dual types.