Number 69: Heraldry Crest - Dark Matter Demolition (Quarter Century Secret Rare) (ALIN-EN046) - Alliance Insight 1st Edition Condition:Heavily Played you can select 1 monster

you can select 1 monster on your opponent's side of the field

Card TextX-Head Cannon + Z-Metal Tank This monster can only be Special Summoned by removing from play the above monsters on your side of the field

"Magician" Pendulum Monsters

Cannot be Normal Summoned/Set

Number 69: Heraldry Crest - Dark Matter Demolition (Quarter Century Secret Rare) (ALIN-EN046) - Alliance Insight 1st Edition Condition:Heavily Played you can select 1 monsterTypePsychic Xyz Effect Monster AttributeLIGHT ATK DEF3100 1900 Card Text5 Level 4 monsters Cannot be destroyed by battle or card effects. Once per turn (Quick Effect): You can detach 1 material from this card, then target 1 face up monster your opponent controls; that monster's name becomes "Unknown". Negate any "Unknown" effects activated by your opponent.