- Neo-Sphere can be translated as "new orb" or something similar from Latin. This maybe a reference to Darkness' desire to fold the entire world into his own.
- This card, Raviel, Lord of Phantasms and The Wicked Dreadroot are the strongest Fiend-type monsters in the OCG. Of the three, this one has the most strict Summoning Conditions, but also only requires 1 Tribute and 1 discard as opposed to 3 Tributes.