Prince Metalsmith

Protection from multicolored cards, Hexproof.
Artifact creatures you play cost {1} less to cast.
Legendary artifacts you control have hexproof.
If both Lord Metalsmith and Prince Metalsmith
are on the battlefield, both get a +4/+4 and gain
menace.
Whenever an artifact creature enters the battlefield, create a 1/1 Metal Man with haste.
{ut}: Tap target creature an opponent controls.
({ut} means untap)