Bormundr, Skorvan Jarl

When Bormundr, Sorvan Jarl enters the battlefield, you may search your library for
an artifact, reveal it, and put it onto the
battlefield tapped. If you do, shuffle your library.
Artifacts you control have "{t}: Add one mana of
any color to your mana pool. This mana can only
be spent to cast Artifact spells."