Black Dragon Collapserpent [SDAZ-EN013] Common Return of the Duelist You can only use this

You can only use this effect of "Perfect Sync - A-Un" once per turn

If this card is in the GY: You can detach 1 material from an Xyz Monster you control

monsters your opponent controls cannot declare and attack if their ATK is greater than or equal to this card's DEF

Set: Duel Terminal 4 Card type: Effect Monster Rarity: Common Attack: 500 Defense: 1200 Once per turn

Black Dragon Collapserpent [SDAZ-EN013] Common Return of the Duelist You can only use thisSet: Structure Deck: Albaz Strike Card type: Effect Monster Rarity: Common Attack: 1800 Defense: 1700 Cannot be Normal Summoned Set. Must be Special Summoned (from your hand) by banishing 1 LIGHT monster from your GY. You can only Special Summon "Black Dragon Collapserpent" once per turn this way. If this card is sent from the field to the GY: You can add 1 "White Dragon Wyverburster" from your Deck to your hand.