Vernusylph and the Flower Buds

Target face-up cards your opponent controls, up to the number of EARTH monsters you control with different names that were Special Summoned from the GY; return EARTH monsters you control to the hand equal to the number of targets, and if you returned at least 1 to the hand, return the targeted cards to the hand. You can only activate 1 "Vernusylph and the Flower Buds" per turn.