Palladium Myr

Voltaic Servant

At the beginning of your end step, untap target artifact.

Other artifact creatures you control get +1/+1.

Flying
Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

Artifact spells you cast cost {1} less to cast.

{T}: Add {C}.
{1}, {T}, Sacrifice Mind Stone: Draw a card.

{T}: Add {C}{C}.
{2}, {T}, Sacrifice Hedron Archive: Draw two cards.