Gliscor

Gliscor (Japanese: グライオン Glion) is a dual-type Ground/Flying Pokémon introduced in Generation IV.

It observes prey while hanging inverted from branches. When the chance presents itself, it swoops! Its flight is soundless. It uses its lengthy tail to carry off its prey... Then its elongated fangs do the rest.

It evolves from Gligar when leveled up at night while holding a Razor Fang.