Forest's Curse is a Grass-type status move with no power and perfect accuracy. When used, it adds the Grass type to the target, making the target a dual-type Pokémon if it wasn't already a part Grass type. This move can strategically alter type matchups and potentially create new weaknesses in the opponent's typing. It is notably the signature move of the Pokémon Trevenant and has a unique interaction in battle, often used to gain a tactical advantage by leveraging type weaknesses and resistances.