Brawler, Skybeat Dragon

:[Legion 20000]"Brawler, Skyhowl Dragon"(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) :When this unit [Legion], choose one rear-guard in your opponent's front row, and retire it. :When this unit attacks a vanguard, this unit gets +2000 until end of that battle.