PaniK PaniK , known as the Player Killer of Darkness in the Japanese version and Yamitsukai in certain video games , is a player Eliminator hired by Maximillion Pegasus . He is a brutal man who targeted Duelists who had earned many Star Chip s . Biography . Duelist Kingdom . Because of his brutality , and the apparent frequency with which he knocks Duelists out of the tournament , he wears 2 double - sized Dueling Gauntlet s . PaniK forced Mai Valentine to wager all eight of her Star Chip s in their Duel despite the fact that she only needed to wager two to achieve the ten required . Yugi Muto and his friends arrived just after PaniK defeated Mai . In order to salvage the situation and return Mai ' s Star Chips , Yami Yugi challenged PaniK to a Duel . Although PaniK ' s use of " Castle of Dark Illusions " and the night field both gave his monsters a powerful advantage , Yugi managed to flush out his monsters with " Swords of Revealing Light " , forcing PaniK to use " Chaos Shield " for further defense . As a result , Yugi took advantage of this by destroying the Castle ' s floatation ring with the effect of " Catapult Turtle " . When the effect of " Swords of Revealing Light " expired , the castle fell on top of PaniK ' s monsters that were unable to escape the confines of " Chaos Shield " , destroying them . With this costing him the Duel , PaniK activated the arena ' s flame ejectors in an attempt to incinerate Yami Yugi . However , Yami Yugi was protected by the power of the Millennium Puzzle and inflicted a Mind Crush on PaniK , purifying his evil heart . ( In the English anime , it caused PaniK ' s soul to be sent to the Shadow Realm . ) Waking the Dragons . PaniK also appeared as one of the lost souls wandering the Stone Wilderness , when Yami Yugi ventured through to find his Yugi . Deck . Anime . Panik plays a Darkness Deck . Using " Castle of Dark Illusions " he conceals his monsters within a field of shadows , protecting against attack s since his opponents cannot see his cards and thus cannot know how powerful they are ; the Night also provides his monsters with a Field Power Bonus , while covering other terrains , preventing his opponents from gaining the same advantages . His monsters are Fiend - Type s with unusual ATK and DEF values , ending in 10 , 30 , 80 , etc , while most monsters have values that end in 00 or 50 . This is so that their ATK and DEF become close to their manga ATK and DEF after they gain the Field Power Bonus from the night . e . g . " Castle of Dark Illusions " had 1200 ATK and 2500 DEF in the manga . In the anime it had 920 ATK and 1930 DEF , which rose to 1196 and 2509 after the Field Power Bonus . In the manga , it did not gain a Field Power Bonus . When his monsters are revealed by " Swords of Revealing Light " , Panik switches to a defensive strategy , bolstering his monsters ' DEF with " Chaos Shield " . Yami Yugi claims Panik ' s method of Dueling is the way of a coward , only powerful when he strikes from the shadows and cowering when confronted in the open , with Yugi ' s counter - strategy using Panik ' s reliance on defense against him by putting him in a position where his defenses trap and destroy his own monsters . Video games . Duel Monsters . In " Yu - Gi - Oh ! Duel Monsters " , Player Killer of Darkness appears as an opponent in the dark Forest area of the Duelist Kingdom island . His Deck consists of many Dark , Fiend - Type Monsters , including Castle of D . Magic and Metal Guardian , used in his Duel against Yugi .