Ajuka has stated that the technology used to create the Arcana Blessing is on par to his own evil pieces, even stating that he has invited Hephaestus and other blacksmith/technology Gods to the Underworld specifically to learn more about Arcana Blessings with even Gray Dantalion stating that the creation of such a thing is a big step towards his goal of the mass creation of Artificial Sacred Gears. The first Arcana blessing used in the series is by Amara BlackBeard Thatch who uses a Arcana Blessing given to her by Aphrodite.