Card Trivia:Mad Hacker
- This monster's name is a portmanteau of the Mad Hatter, from Lewis Carroll's Alice's Adventures in Wonderland, and "hacker".
- This monster was revealed on Twitter on October 6, 2021, a day unofficially celebrated as "Mad Hatter Day" in reference to the 10/6 notation popularly associated with the character's hat (which is itself a reference to 10 shillings and 6 pence, the price of a hat in those days). The 10/6 is further referenced in this monster's ATK/DEF.
