Crystalwing Dragon

(This ability is active if you have one or more face up G units in total on your or G zone): 1 Choose one of your units. If you do, choose up to four of your units with the same card name as that unit, and they get +3000 until end of turn. :[ 1 & 1] When this unit is placed on , you may pay the cost. If you do, choose one of your grade 2 or less rear-guards, search your deck for up to one card with the same card name as that unit, call it to , and shuffle your deck.