Mad Hatter

Affinity for artifacts. This creature is unaffected by summoning sickness.
Artifacts you control that enter tapped enter untapped, artifact creatures you control enter with riot.
{p/c}Sacrifice an artifact•Search your library for an artifact with equal or less cmc, put it into play as though it were just cast.
{t}Chose target Historic permanent in your graveyard, you may cast it this turn.