FusionDex

Bellduo's two different heads help work together to consume a variety of prey. Its bird-like head can spear bug Pokémon with its beak, while its plant bulb head spews acid to help dissolve tough exteriors for easier consumption.

Even while eating or sleeping, one of the heads remains always vigilant for any sign of danger. A Bellduo's thin and flexible body lets it bend and sway to avoid any attack, however strong it may be.