Card Rulings:De-Fusion
Contents
TCG Rulings
Mentions in Other Rulings
- G.B. Hunter: While “G.B. Hunter” is in play, you cannot activate effects that would return monsters to the Extra Deck, such as “De-Fusion,” “De-Synchro,” or “Compulsory Evacuation Device” targeting a Fusion or Synchro Monster.
Email Rulings
 | These Ruling(s) have not been confirmed as applicable to the TCG.[Notes 1] |
- You can use De-Fusion even if none of the Fusion Material Monsters are in the Graveyard. The result is that the Fusion Monster just goes back to the Extra Deck.[1]
- If you are unable to Special Summon all of the Fusion Material Monsters, you cannot Summon any of them.[1]
OCG Rulings
- If "De-Fusion" targets a Fusion Monster that was Special Summoned from the Graveyard by a card like "Monster Reborn", then the Fusion Monster is returned to the Extra Deck, but you do not Special Summon the Fusion Material Monsters from your Graveyard.[2]
- Suppose the name of "Elemental HERO Prisma" is changed to "Elemental HERO Neos" by its effect, and then it and a WATER monster are used as Fusion Materials to Fusion Summon "Elemental HERO Absolute Zero". Afterwards, if "Elemental HERO Absolute Zero" is targeted by "De-Fusion", then you can Special Summon that "Elemental HERO Prisma" which was used as a Fusion Material, even though the name of "Elemental HERO Prisma" returned to its original name when it was sent to the Graveyard.[3]
Previously Official Rulings
| These TCG rulings were issued by Upper Deck Entertainment and have since been declared unofficial by Konami.[5] They were previously considered official and can still be correct, as long as they follow the official gameplay rules, or unless Konami has issued a ruling that says otherwise. References: [6][7][8][9][10][11][12][13][14] |
- Special Summoning the Fusion Material Monsters is an option. So you may use "De-Fusion" to return a Fusion Monster to its owner's Extra Deck even if you have only 1 or none of the appropriate Fusion Material Monsters in your Graveyard.
- If you have only 1 of the Fusion Material Monsters in your Graveyard you cannot Special Summon it.
- You may use "De-Fusion" to Special Summon "Goddess with the Third Eye" or "King of the Swamp" if it was used as a Fusion Material Monster for the Fusion Monster selected with "De-Fusion".
- After you attack with a Fusion Monster, you may activate "De-Fusion" in the End Step of the Battle Phase to Special Summon the appropriate Fusion Material Monsters and attack with them in the same Battle Phase.
- If you activate "De-Fusion" and select a Fusion Monster that was Special Summoned by "Magical Scientist" or "Metamorphosis" you can return the Fusion Monster to the owner's Extra Deck, but cannot Special Summon any Fusion Material Monsters since none were used.
Mentions in Other Rulings
- Centrifugal Field: Unlike "De-Fusion", the Fusion Material Monsters Special Summoned with "Centrifugal Field" do not have to have been used to Fusion Summon the Fusion Monster. In fact, that Fusion Monster does not have to have been properly Fusion Summoned at all (it could have been Special Summoned with "Magical Scientist" or "Summoner of Illusions" instead).
- Chimeratech Overdragon: You can activate "De-Fusion" and target "Chimeratech Overdragon", but you can only Special Summon the Fusion Material Monsters if you have enough vacant Monster Card Zones for ALL of the Fusion Material Monsters you used.
- Diffusion Wave-Motion: If you Special Summon a monster during the Battle Phase after having activated "Diffusion Wave-Motion" (such as with "De-Fusion"...), that monster cannot attack because "Diffusion Wave-Motion"'s effect prevents all monsters other than the selected Level 7 Spellcaster-Type monster from attacking.
- King Dragun: Your opponent cannot target a Dragon-Type Fusion Monster with "De-Fusion" while "King Dragun" or "Lord of D." is on the field because "De-Fusion" targets.
- Proto-Cyber Dragon: If "Proto-Cyber Dragon" is used in the Fusion Summon of "Cyber Twin Dragon", and "De-Fusion" is used on that "Cyber Twin Dragon", you cannot Special Summon the "Proto-Cyber Dragon" from the Graveyard because its name is not 1 of the listed Fusion-Material Monsters. (It's no longer treated as "Cyber Dragon" while in the Graveyard.)
Judge List Rulings
- Using the second effect of "The Light - Hex-Sealed Fusion" is NOT a Fusion Summon. So, if you return a Fusion Monster Special Summoned by "The Light - Hex-Sealed Fusion's" effect to the Extra Deck with "De-Fusion", no monsters will be Special Summoned by "De-Fusion".[4]
Notes
- ↑ Email Rulings are considered unverified, as their source(s) are not publicly viewable. They are not confirmed as applicable to the TCG until they have been officially published by Konami.
References
- ↑ a b De-Fusion (Individual e-mail from Konami rulings support)
- ↑ Konami OCG FAQ: Can you Special Summon the Fusion Materials if "De-Fusion" is activated on a Fusion Monster Special Summoned by "Monster Reborn"?
- ↑ Konami OCG FAQ: If you activate "De-Fusion" on a Fusion Monster which used as a Material an "Elemental HERO Prisma" whose name changed, then what happens?
- ↑ UDE Judge List: The Light - Hex-Sealed Fusion vs De-Fusion
- ↑ Konami Judge Program Forum: Individual Email Rulings VS Individual Card Rulings
- ↑ UDE FAQ: Individual Card Rulings [A-C]
- ↑ UDE FAQ: Individual Card Rulings [D-E]
- ↑ UDE FAQ: Individual Card Rulings [F-H]
- ↑ UDE FAQ: Individual Card Rulings [I-K]
- ↑ UDE FAQ: Individual Card Rulings [L-O]
- ↑ UDE FAQ: Individual Card Rulings [P-R]
- ↑ UDE FAQ: Individual Card Rulings [S-T]
- ↑ UDE FAQ: Individual Card Rulings [U-Z]
- ↑ UDE FAQ: SPECIFIC CARDS RULINGS
