Ultimate Obedient Fiend

Ultimate Obedient Fiend was originally released in the Japanese set Labyrinth of Nightmare in 2002, later appearing in the English market as part of Dark Revelation Volume 1 in 2005. As a reprint set, Dark Revelation was designed to consolidate popular cards from the early years of the Yu-Gi-Oh! Trading Card Game, allowing players access to cards previously scattered across various booster expansions. The artwork features a distinct, aggressive aesthetic common to early Fiend-type monsters, emphasizing the dark, gothic fantasy themes that defined the series' initial visual identity.

Mechanically, the card represents the high-risk, high-reward design philosophy prevalent in early game development. It requires the player to have no other cards in their hand to activate its powerful direct attack ability, embodying a 'top-decking' playstyle that forces players to rely entirely on the strength of the monster. While it never became a staple in competitive tournament play due to its restrictive activation requirements, it remains a recognized example of the game's early efforts to balance massive attack potential with situational drawbacks.