BT17/031   古代竜 ナイトアーマー
Ancient Dragon, Night Armor

Clan: Tachikaze   Race: Dino Dragon
[A] [(R)]: [Choose 1 of your other Rearguards with "Ancient Dragon" in name and Retire it] When this attacks a Vanguard, if your Vanguard is Legioned, you may pay cost. If so, for the battle, this gains +5000 Power and "[A] [(R)]: When this hits with an attack, choose a card in your Damage Zone and turn it face-up".