Changes
You can't use Overload fusion to Summon Fortress Dragon.
* You can summon "Chimeratech Fortress Dragon" even if you don't have a "Cyber Dragon" or any Machines on your side of the field. If your opponent has the necessary [[Fusion Material Monsters]], you can send them to the Graveyard to Special Summon this card.
* Use "[[DNA Surgery]]" to pull out "Chimeratech Fortress Dragon" easier while clearing your opponent's field for attacks