Seeker, Purgation Breath Dragon

:[Legion 20000]"Brave Stride Seeker, Cherin"(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) : 2-card with "Seeker" in its card name] If this unit is [Legion], search your deck for up to one card with "Seeker" in its card name, call it to , and shuffle your deck. Then, if the number of units you have is more than your opponent's, choose a card from your damage zone, and turn it face up. This ability cannot be used for the rest of that turn. :When this unit attacks a vanguard, if you have another unit in your middle column, this unit gets +3000 until end of that battle.