Witch of the Dusk Rose

{b}{u}{g}, Sacrifice X Plant Creatures, {t}: Gain
control of target creature with converted mana
cost X or less until Witch of the Dusk Rose
leaves the battlefield. It becomes a Green Plant creature in addition to its other colors and types
and gains defender.
When Witch of the Dusk Rose enters the Battlefield, return target Plant creature from a graveyard to the battlefield under your control.