Liberator, Blue Flame Dragon

:[Legion 20000]"Unbending Liberator, Keredic"(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 attacks a vanguard, if this unit is [Legion], this unit gets +5000 until end of that battle. :When this unit attacks a vanguard, this unit gets +2000 until end of that battle.