Minereon

The name is pronounced Min-air-eon, cuz it's named after minerals, not miner. Although that would work too.

This one's my steel type eeveelution idea, although the fact that it's covered in metal probably gave it away!

To obtain... level up Eevee while holding... um.... an iron helmet... yeah that'll do.

The Armored Pokemon

Ability: Heatproof (Hidden ability - Light Metal)

A solitary Pokemon that is adept at using the small blades on its forelegs in battle. It lives in deep caverns, releasing light from its chest gem to see.

Pokemon copyright Nintendo, but this one is mine