Qliphoth and Sefiroth mentioned in this card's flavor text are concepts covered by Kabbalah, a set of esoteric teachings meant to explain the relationship between an unchanging, eternal, and mysterious Ein Sof (no end) and the mortal and finite universe (God's creation).
The Sefiroth (or Sefirot/Sephirot) are the ten emanations and attributes of God with which he continually sustains the universe in existence.
This monster is based on Tiferet.
This card's Japanese name contains ツール tsūru, a pun on "tool" and "Kaitul" (カイツール Kaitsūru "ugliness"), the sixth Qliphoth emanation which is associated with the DevilBelphegor.
This is the first card to include some sort of computer-related characters and syntaxes in its flavor text.
The Yen sign (¥) as seen in this card's Japanese flavor text is used in place of the reverse solidus (\), also known as the backslash, in computing paths in Japanese-locale systems. Similarly, the Won sign (₩) as seen in its Korean flavor text is used instead in Korean-locale systems.