Goat format ruling
Machine Duplication
Card effect (current official text)Target 1 Machine monster you control with 500 or less ATK; Special Summon up to 2 monsters from your Deck with the same name as that face-up monster.
Rulings
- If a monster on the field, with an ATK of 500 or less, is changed to Machine with DNA Surgery, you can use Machine Duplication to Special Summon up to 2 copies of it from your Deck.
- The Machine monster is chosen at activation of this card, so if the opponent chains Ring of Destruction to destroy the chosen monster, up to 2 copies of that card can still be Special Summoned.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.