Torrent (ability)

Torrent is an ability introduced in Generation 3. So far, 4 Pokémon have this Ability. All Water-type Starter Pokémon have this Ability, although it's not exclusive to them, and all Pokémon that have this Ability are Water-types. There are 3 Abilities that are variants of Torrent: Overgrow, which affects Grass-type Attacks, Blaze for Fire-type Attacks and Swarm for Bug-type Attacks.

In Battle
If the user has less than or equal to ⅓ of its maximum HP remaining, the power of Water-type moves increases by 1.5 times, or 50% (which is called "in a pinch" in-game).

Outside of Battle
Torrent has no effect outside of battle.

Trivia

 * Between Torrent and its variants, Swarm is the only one that none of the Starter Pokémon have.
 * Also, Swarm has the most Pokémon with this Ability, with 12, while Torrent has the least, with only 4.