Lavalval Chain [PGL2-EN044] Gold Rare ST10-14 You can discard this card

You can discard this card

but change its ATK and DEF to 0

if a monster you control whose original Attribute and Type are DARK and Machine destroys a card(s) on the field by battle or by its own effect: You can Special Summon 1 DARK Machine monster from your hand

You can only use this effect of "Vendread Nights" once per turn

Lavalval Chain [PGL2-EN044] Gold Rare ST10-14 You can discard this cardSet: Premium Gold: Return of the Bling Card type: Xyz Effect Monster Rarity: Gold Rare Attack: 1800 Defense: 1000 2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card to activate 1 of these effects: Send 1 card from your Deck to the Graveyard. Choose 1 monster from your Deck and place it on top of your Deck.