Dragon Master Lord

[ Dragon / Xyz / Effect ] 2 Level 12 monsters While you control this Xyz Summoned card, your opponent cannot target it with card effects, also it cannot be destroyed by your opponent's card effects. If this cards attacks a Defense Position monster while you have 25 or more cards in your GY, inflict double piercing battle damage to your opponent. Once per turn, if your opponent has 25 or more cards in their GY: You can detach 1 material from this card; Special Summon 1 monster from your Deck, Extra Deck, or GY. ATK/ 5000 DEF/ 5000