Enchant nonartifact creature you don't own

You control enchanted creature. Enchanted creature is an artifact in addition to it's other types.

When enchanted creature dies, it's owner may pay {2}. If they do, destroy Mind Control Collar instead.

{X}{u}{u}{b}{r}: Create a copy of Mind Control Collar. X must be equal to twice than the number of cards you control named Mind Control Collar.