Archen

Archen is a dual-type Rock/Flying Fossil Pokémon introduced in Generation V, known for being one of the earliest known bird Pokémon. It does not naturally evolve but can be revived from a Plume Fossil. Archen is often referred to as the "First Bird Pokémon" due to its prehistoric origins, resembling an Archaeopteryx. Its natural habitat would have been ancient forests, where it likely hopped between branches rather than flying, as its wings were not yet fully developed for sustained flight. Archen is a carnivore, preying on smaller creatures. In the Pokémon games, players typically obtain Archen by reviving a Plume Fossil found in the Relic Castle. Its evolution, Archeops, is a powerful offensive Pokémon, though it comes with the "Defeatist" ability which halves its Attack and Special Attack when its HP is below half. Archen's unique design and backstory contribute to its appeal, highlighting the rich history and diversity within the Pokémon world. Its representation in the anime often emphasizes its struggle to adapt to a modern world, further endearing it to fans.