Star-vader, Blaster Joker

[ACT](VC): Legion20000 "Companion Star Star-vader, Photon" (If your opponent's vanguard is grade 3 or greater, this unit may return four cards from your drop zone into your deck once, search your deck for the specified card, and Legion) [ACT](VC):[Counter Blast (2) & Soul Blast (2) & Choose one of your rear-guards with "Star-vader" in its card name, and lock it] If this unit is Legion, lock all of your opponent's rear-guards, choose one of your opponent's legion mates, and retire it. [AUTO](VC):[Choose a card with the same card name as a unit in your (VC) from your hand, and put it into your soul] When this unit attacks a vanguard, you may pay the cost. If you do, this unit gets [Critical]+1 until end of that battle.