Number 69: Heraldry Crest – Shatter Stream – Common

4 Level 4 monsters
You can also Xyz Summon this card by using a monster you control whose original name is «Number 69: Heraldry Crest». (Transfer its materials to this card.) When your opponent activates a monster effect on the field, or an opponent’s monster declares an attack (Quick Effect): You can Special Summon from your Extra Deck, 1 «Number 69: Heraldry Crest – Dark Matter Demolition» by using this face-up card you control as material, then destroy that opponent’s monster. (This is treated as an Xyz Summon. Transfer this card’s materials.) You can only use this effect of «Number 69: Heraldry Crest – Shatter Stream» once per turn.