Leech Seed is a Grass-type move with no direct power and an accuracy of 90%. When successful, it plants a seed on the target Pokémon, which drains 1/8th of the target's maximum HP at the end of each turn and returns it to the user. Leech Seed continues to drain HP even if the user switches out. It does not affect Grass-type Pokémon or those with the Overcoat or Magic Guard abilities. Leech Seed is valued in competitive play for its ability to sap the opponent's health over time, providing a sustainable recovery method for defensive and stalling strategies.