- This card's head matches the artwork for "Shaddoll Roots," making it probable that this form is what became of "Cairngorgon, Antiluminescent Knight" and, thusly, the "Gem-Knights."
- This is supported by the card being named "Egrystal", a word play on "Gem-Knight Crystal".
- Additionally this card shares the exact same ATK and DEF values as Cairngorgon.
- "Egrystal" also refers to the fact that this monster kind of resembles "Gem-Knight Garnet", thus featuring a combination of the names "Crystal" and "Garnet"
- This is the first Rock-Type FIRE Fusion Monster.
- "El Shaddoll Midrash" appears in the background of this card. This is likely a reference to the synergy between the two cards.