Monster Manual
{3}{G}Artifact
{1}{G}, {T}: You may put a creature card from your hand onto the battlefield.
Monster Manual // Zoological Study
{3}{G} // {2}{G}
Artifact // Sorcery — Adventure
Oracle Text
Zoological Study
{2}{G}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.)