Machine Duplication [DR3-EN101] Rare Ritual/Spirit/Effect Monster you can Special Summon 1

you can Special Summon 1 Monster Card that includes "Gravekeeper's" in its card name from your Graveyard to the field

Set: Structure Deck: The Dark Emperor Card type: Normal Spell Rarity: Common Select up to 5 cards from the Graveyard(s) and remove them from play

the Fusion Material Monsters listed on a Fusion Monster Card that lists a Synchro Monster as a Fusion Material Monster

send both it and this card from the field to the Graveyard

While your opponent controls only 3 monsters

Machine Duplication [DR3-EN101] Rare Ritual/Spirit/Effect Monster you can Special Summon 1Set: Dark Revelation Volume 3 Card type: Normal Spell Rarity: Rare Select 1 Machine Type monster with 500 or less ATK on your side of the field. You can Special Summon up to 2 cards with the same name from your Deck.