BT01/0025EN (R) Dragon's Seal

Name: Dragon's Seal

Card Number/Rarity: BT01/0025EN R (Rare)

Card Type: Spell

Attribute: Dragon

World: Dragon World

Card Effect: 

[Set] （This card remains on the field.）
■[Cast Cost] Put the top three cards of your deck into this card's soul face down.
■[Counter] 【Act】 If your life is 3 or less, you may reveal all cards in this card's soul. If you do, choose up to one 《Armordragon》 monster from among them, call it by paying its [Call Cost], and destroy this card.