After evolving from Pineco, Forretress became Brock's most commonly used Pokémon.
It got over its habit of exploding when near Brock and became a powerhouse. Forretress was the only one of Brock's Pokémon that he took to Hoenn with him and resided as a vital member of his team until Sinnoh. Brock's Pineco debuted in "Entei At Your Own Risk" as a Forretress. It is currently at the Pewter City Gym.
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