Monster Manual
{3}{G}Artifact
{1}{G}, {T}: You may put a creature card from your hand onto the battlefield.

Artifact // Sorcery — Adventure
Artifact
{1}{G}, {T}: You may put a creature card from your hand onto the battlefield.
Sorcery — Adventure
Mill five cards, then return a creature card milled this way to your hand. (Then exile this card. You may cast the artifact later from exile.)