Metallic Pokémon are the one of the special variant in Pokémon Vortex. These Pokémon have 25% more defense compared to other variants. Metallic Pokémon are rare as every other Pokémon variant that isn't Normal Variant.
All of these Pokémon were made by staff of Pokémon Vortex. Metallic basic Pokémon can be caught on maps at any level between 5 and 20. Metallic high leveled Pokémon can be caught on maps at any level between 35 and 46. Metallic legendary Pokémon can be caught on maps at any level between 50 and 75.
In the most recent version of Pokémon Vortex, all Pokémon including Generation VII Pokémon were introduced in all 6 variants. With the game transition from Version 2 to Version 3, Ancient Pokémon were replaced with Metallic Pokémon.