Edison format ruling
Chimeratech Fortress Dragon

Card text as printed in this eraCyber Dragon" + 1 or more Machines
© Cannot be used as Fusion Material.
Ⓢ Must be Special Summoned (from your Extra Deck)
by sending the above cards from either field to the GY(s) (You don't use "Polymerization").
① This card's Original ATK is equal to 1000x the number of its Fusion Materials.
Rulings
- Since this card can't be used as Fusion Material, you cannot Summon Chimeratech Fortress Dragon using another copy of it as material.
- You can always use face-down monsters you control as Fusion Material (but not ones your opponent controls).
- You can't use Tokens as Material for this card.
- If this card's effect is negated, its ATK becomes 0 (permanently)
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.