Thesame-type attack bonus (Japanese:タイプ一致ボーナスcoincident type bonus), abbreviatedSTAB, is adamage boost that is applied tomoves used by aPokémon of the sametype. This bonus has been present in allcore series Pokémon games.

In the core series games

If a Pokémon uses a damagingmove that has the sametype as one of that Pokémon's types, the move's damage is increased by ×1.5. If a Pokémon has theAbilityAdaptability, the boost is ×2 instead.

The type of the Pokémon and the move when it is used determine whether it receives the bonus, not their listed types. For example, if a Fire-type Pokémon usesWeather Ball duringharsh sunlight (so that the move becomes Fire-type), it will receive the bonus; however, if a pure Normal-type Pokémon uses Weather Ball during harsh sunlight, it will not receive the bonus, despite Weather Ball being listed as a Normal-type move. Similarly, if aDark-type Pokémon withProtean activates its Protean by using anIce-type move, it will receive the bonus for Ice-type attacks and lose it for Dark-type attacks.

Pledge combination moves (two different moves from amongGrass Pledge,Fire Pledge, orWater Pledge performed by the same team on the same turn) always receive the bonus, even if neither of the performers shares a type with either half of the move combination (for example, a Silvally with Grass Pledge and a Smeargle with Water Pledge).

Flying Press is aFighting-type move, not aFlying-type move, despite using the type effectiveness of both types. It receives STAB only when used by a Fighting-type Pokémon.

InPokémon Legends: Arceus, STAB only increases a move's damage by ×1.25.

InGeneration IX,Terastallized Pokémon receive STAB for their Tera type and the type(s) they had immediately before Terastallizing. If their Tera type is one of their original type(s), the STAB boost becomes ×2 for attacks that have the same type as their Tera type. If such an attack is also affected by Adaptability, the STAB boost is increased to ×2.25.

Should the Terastallized Pokémon change to theStellar type, the x2 STAB boost will be granted to all of its moves regardless of their type. However, the boost will only be applied once for each move type, and afterwards the boost will return to the standard x1.5 for all other moves of that same type. WithinTera Raid Battles, this limitation is absent, allowing the STAB boost to be applied at all times.

Unaffected moves

The same-type attack bonus is applied as part of the damage formula, so does not apply todamaging moves that do not use the damage formula to calculate damage. Likewise, damage that is not the direct result of a damaging move (such aspoison damage, or the additional effect ofFlame Burst) does not receive the same-type attack bonus.

Additionally, fromGeneration II onward,Struggle deals typeless damage and consequently does not receive the same-type attack bonus. From Generations II to IV,Beat Up,Future Sight, andDoom Desire also do not receive the same-type attack bonus.

Pokémon that do not have a type do not get a bonus when using a move that does not have a type. For example, if a pureFire-type Pokémon that usedBurn Up (and so no longer has a type) usesRevelation Dance, Revelation Dance will not have a type and would not receive the same-type attack bonus.

Shadow moves (which only exist inPokémon Colosseum andXD) never receive the same-type attack bonus.

In the spin-off games

Pokémon Mystery Dungeon series

In the Mystery Dungeon games, STAB boosts damage by 50%.

InPokémon Mystery Dungeon: Gates to Infinity andPokémon Super Mystery Dungeon, the boost is instead 20% (50% withAdaptability).

Pokémon GO

In Pokémon GO, STAB boosts damage by 20% (25% prior to June 21, 2017).

Pokémon Quest

In Pokémon Quest, moves that have the same type as their user deal slightly more damage. This is not referred to as the "Same-type attack bonus", instead stated more generally. The heading for the loading screen tip is "Same-Type Moves", and it reads, "If you use a move that's the same type as the Pokémon using it, the move will deal slightly more damage."

In the manga

Pokémon Adventures

Omega Ruby & Alpha Sapphire arc

The concept of same-type attack bonus was mentioned byRuby inSalamence Evolves, noting howZinnia used herMegaSalamence'sAerilateAbility to give itsHyper Voice attack a power boost.

Trivia

• Contrary to what some early strategy guides stated,Normal-type attacks receive same-type attack bonus.
• The AbilityNormalize changes all of the Pokémon's moves to be Normal-type, allowing a Normal-type Pokémon to always receive the same-type attack bonus.
• Thesignature AbilitiesSteelworker andRocky Payload can be thought to simulate STABs forDhelmise andBombirdier, respectively.
• InPokémon Scarlet and Violet, there is a book entitled "Types and Moves I" atNaranja Academy^S/Uva Academy^V, which describes STAB:

"When Pokémon use a move that is the same type as they are, that move's power is increased by 50 percent. For Pokémon that have two types, moves of either type will receive this increase."

Related articles

• Damage
• Type

In other languages

This game mechanic article is part ofProject Games, aBulbapedia project that aims to write comprehensive articles on thePokémon games.

• Game mechanics