Sigilyph

Black: They never vary the route they fly, because their memories of guarding an ancient city remain steadfast.

White +2: The guardians of an ancient city, they use their psychic power to attack enemies that invade their territory.

Black 2 +3: The guardians of an ancient city, they always fly the same route while keeping watch for invaders.

Sword: Psychic power allows these Pokémon to fly. Some say they were the guardians of an ancient city. Others say they were the guardians’ emissaries.

Shield: A discovery was made in the desert where Sigilyph fly. The ruins of what may have been an ancient city were found beneath the sands.