Edison format ruling
Chimeratech Overdragon
Card effect (current official text)"Cyber Dragon" + 1+ Machine monsters
Must be Fusion Summoned. If this card is Fusion Summoned: Send all other cards you control to the GY. The original ATK/DEF of this card each become equal to the number of Fusion Materials used for its Fusion Summon x 800. Each turn, this card can attack your opponent's monsters a number of times equal to the number of Fusion Materials used for its Fusion Summon.
Rulings
- When you Fusion Summon this card you can use a substitute, such as "King of the Swamp", for the "Cyber Dragon", but not for the Machine-Type monsters. That means you can use a maximum of 1 substitute monster in the Fusion Summon.
- The effect that sends all your other cards to the GY is a Trigger Effect and it can be chained to.
- "Chimeratech Overdragon" can attack the same monster more than once if the attack target is not destroyed, such as an Attack Position "Spirit Reaper".
- If "Chimeratech Overdragon" attacks directly, and then the opponent Special Summons a monster during the same Battle Phase it cannot attack it.
- 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.
- If this card is Special Summoned by the effect of Future Fusion while you have Cyber Phoenix in Attack Position, when this card's effect sends all other cards you control to the GY Future Fusion is still being negated, so the Chimeratech Overdragon will not be destroyed and remains on the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.