Card Trivia:Mathmech Nabla
- This monster appears in the artwork of "Mathmech Superfactorial".
- This monster is based on the differentiation operator nabla (∇).
- Fittingly, the inverted triangles on this monster's armor and weapon are shaped like the nabla.
- This card is a counterpart of "Mathmech Sigma".
- This monster is based on differentiation, while "Sigma" is based on summation (which is involved in integration).