Finest Fantasy 13

Finest Fantasy 13 (究極幻想13) is Luxord's joke weapon from Kingdom Hearts 358/2 Days. They are gigantic CDs, depicting the Nobody insignia and the Roman numeral for 13 (XIII), a reference to Organization XIII. As revealed by Tetsuya Nomura in Kingdom Hearts 358/2 Days Ultimania, this weapon's name was originally intended to be "Ultimate Delusion 13" (究極妄想13), but the idea was scrapped due to the complaints of the overseas translators.

Finest Fantasy 13 is one of only 4 of Luxord's weapons that's name is not drawn from one of 22 cards that make up a Tarot deck's Major Arcana. The others are The Joker, Fair Game, and High Roller's Secret.

Trivia

 * "Ultimate Illusion" as a play on "Final Fantasy" has also been used in Final Fantasy XII and Dissidia: Final Fantasy as moves used by Gilgamesh and Chaos, respectively.