Thrumming Stone [Coldsnap] BW56 its commander wounded

its commander wounded

you cannot Special Summon monsters from the Extra Deck

and Special Summon that monster

Set: ZEXAL Manga Promotional Cards Card type: Xyz/Effect Monster Rarity: Ultra Rare Attack: 2100 Defense: 1500 2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card

Thrumming Stone [Coldsnap] BW56 its commander woundedSet: Coldsnap Type: Legendary Artifact Rarity: Rare Cost: {5} Spells you cast have ripple 4. (Whenever you cast a spell, you may reveal the top four cards of your library. You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs. Put the rest on the bottom of your library.)