Ultima Carver, Hollows End

{3}{b}{g}, {t}: Mill four cards from your library.
When you do, return up to one creature card from
among them onto the battlefield, it now becomes a green Plant along with its other colors and types.

Recycle - Whenever a creature with power 3 or greater is put into a graveyard, create a tapped 0/1 Plant creature token with defender and has
"{t}, Add {g} to your mana pool."