Platinal

A monster which appears in the Crystal Tower, located in a world far away. It is covered in hardened armor, wandering around the inside of the tower and attacking any humans it sees. It is thought to be not a monster but a knight consumed by its own power, seeking strong opponents with which to test itself, though no one really knows the truth. It can take a hit, and since it boasts high ATK, they should definitely be taken seriously.