First introduced in gen3, is the beast of a berry in the game?
Generations III-VI
A Figy Berry, when held by a Pokémon, will restore 1/8 of its HP when its HP drops to ½ or below, but causes confusion to Pokémon that dislike the spicy flavor. (Specifically, it confuses Pokémon with Modest, Timid, Calm, or Bold Natures.)
Generation VII
A Figy Berry, when held by a Pokémon, will restore ½ of its HP when its HP drops to ¼ or below, but causes confusion to Pokémon that dislike the spicy flavor. (Specifically, it confuses Pokémon with Modest, Timid, Calm, or Bold Natures.)