D/D/D Stone King Darius

[ Fiend / Xyz / Effect ] 2 Level 3 Fiend-Type monsters Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then target 1 "Dark Contract" card you control; destroy it, and if you do, draw 1 card. If this card battles an opponent's monster, during damage calculation: You can detach 1 Xyz Material from this card; make this card unable to be destroyed by that battle, destroy the opponent's monster that battled it after damage calculation, and if you do, inflict 500 damage to your opponent. ATK/ 1900 DEF/ 1000