What An Idiot / Yu-Gi-Oh!

Being a franchise where Duels Decide Everything, the moves of the combatants in Yu-Gi-Oh! are at their most impressive when played through wits and synergy. At the same time, that means that it's all too easy to see a duelist make an illogical move or play the wrong card.

  • Anytime a bad guy(s) or security cornered a hero that has no way of defending themselves, the bad guy can take anything the hero has to offer.
    You'd Expect: For the bad guy to just kick the crap out of the hero without challenging them to a children's card game, taking whatever items or possessions that they may have.
    Instead: For some reason, they decide to do it if only they won the duel in spite of the fact they don't even need to do that. Yu-Gi-Oh Abridged sums up the entire idiocy:
    Seeker: We are the elite group known as Rare Hunters. My name is Steve. And these are my associates. They are also called Steve. We're here to take your rarest card!
    Joey: You mean you're gonna kick the crap out of me and steal it?
    Seeker: No! First we're going to challenge you to a children's card game! Then we will kick the crap out of you and steal it!
    Joey: Wouldn't it be much easier just to skip the first step?
    Seeker:Yes! Yes it would!
  • Yu-Gi-Oh!:
    • In the start of the very first Arc, Yugi is approached by Insector Haga/Weevil Underwood, who asks to see his Exodia Cards. Exodia is an Instant Win set of cards that allows anyone who has all five cards in their hand to automatically win the duel. Yugi is about to play in a tournament against Haga/Weevil, and the Exodia Cards would be a massive threat to any competitors he went up against
      You'd Expect: That Yugi would refuse his request, or if he did allow Haga/Weevil to see them, he wouldn't allow the cards to leave his hand for any reason whatsoever.
      Instead: Yugi just hands him the cards without hesitation.
      Result: Haga/Weevil throws the cards over the deck of the cruise ship, ensuring that Yugi cannot use his extremely powerful Ace Cards.
      • Also Weevil has a set of absurdly overpowered cards in his hands.
        You'd Expect: Weevil would just pocket the cards and leg it back to his room and lock the door, securing an enormous advantage over his opponents in the tourament by virtue of posessing Exodia
        Instead: He throws them over the side of the ship, ensuring that he cannot use them.
    • A more direct plot element from the first series goes like this: in the middle of the ocean, the main characters' airship is attracted by a new villain totally out of the blue that demands that they defeat him in a virtual reality game thing (filler, anime-exclusive arc). They do it; but by doing it they left Evil Marik, the villain, unsupervised; and Odion/Rishid, the guy he's trying to kill, at his mercy. (He is currently in a coma and cannot defend himself.)
      You'd Expect: For Marik to find Odion in the ship and kill him. And if Isis tried to protect him, kill her as well (seeing how she has no Millennium Item left to defend her at this point).
      Instead: He just sits and waits for God-knows-how-long, and near the end of the whole thing decides to leave the airship and destroy the arc villain's computers for the lulz. And go back on board.
    • The first ever duel between Joey and Kaiba takes place at Duelist Kingdom. It's the first ever duel using the newest technology created by Kaiba Corp: essentially a prototype for the DUEL DISK SYSTEEEEEEEM! (trademark). Early on into the fight, Kaiba summons Battle Ox which utterly destroys Joey's Armored Lizard and Flame Swordsman, and then fuses with Kaiba's Mystic Horseman to become the much stronger Rabid Horseman. At this point, it can easily destroy any monster in Joey's hand.
      You'd Expect: Joey would simply put monsters in defense mode or if he doesn't know, ask Kaiba how to do it. In case you didn't know, a monster in defense that's destroyed in battle deals no damage to the player's life points (with a handful of monsters having an aversion to this being their effect). It's been used before and after this duel.
      Instead: Joey keeps summoning them in attack mode. The monsters don't have HP like an RPG or anything, so being attacked by a weaker monster does nothing but cost yourself life points. Back when this duel took place, the rules were sort of different in a way that would have given Joey an advantage. There was no attacking directly, you could only attack as many times as there were monsters to hit. Joey could have simply put his cards on defense until he drew something strong enough to do something. Had Joey dueled correctly using the rules at the time, he likely would have only taken a total of 800 LP, out of a total (at the time) 2000. It would have kept going, but the idiot move was treated like Kaiba was genuinely skilled. And by the time Joey summoned his Red-Eyes Black Dragon, it was too little too late as Kaiba draws his Blue-Eyes and destroys it.
    • Bandit Keith is shown to have a gun that he used to threaten Pegasus for his prize money.
      You'd Expect: That he would use it earlier, when Joey has just defeated Bonz for the star chips where he just shoots him along with all of his friends for some free star chips. Or better yet, he could use it to threaten as many hapless duelists as possible for their star-chips, potentially enough to get all four of his gang to the Duelist Kingdom finals and would purposely stage it so that he gets to duel Pegasus. If he (predictably)loses, then he would have all his gangs subdue him and extort him for the money and humiliate Pegasus at the same time.
      Instead: He doesn't think of doing any of this and by the time he threatens Pegasus with one, he ended up falling to a trapdoor and sink into the ocean, making his entire ploy to defeat Pegasus pointless.
    • During the Battle City tournament, Kaiba has invented a new rule that disallows Fusion Monsters to attack during the turn it is summoned (Keep in mind that at this point, you can only fuse based on the monsters you control).
      You'd Expect: For the duelists to simply attack the player with all their remaining monsters before they fuse in the Main Phase 2.
      Instead: They fuse with the monsters first before they even attack and without even using Quick Attack. This results in most duelists throwing the game when they could have just attack first and fuse later.
    • Before the start of the series, Kaiba has been given a test by his evil stepfather, Gozaburo, into paying him back the $10,000,000 he lend him. At some point, he begins to leak out his plans to his stepfather about having to put him out of business so that he can take over KaibaCorp and makes him think Mokuba is the culprit of this.
      You'd Expect: That he would immediately tell his brother about this part of the plan. That way, Mokuba, while being accused of this act, won't have a reason to doubt him that he is a Manipulative Bastard.
      Instead: He brutalizes Mokuba without telling him about all this, accusing of selling him out, and sending him out of his room. He does all this in order for his stepfather to give him 2% of his share to be transferred to him when the time comes.
      Result: This scheme works a little too well, before it started to bite him in the ass. After having Mokuba captive and still believes in his brother despite this move, Noah, the filler arc villain, brings out a hologram of Kaiba where it rejects him. This breaks Mokuba enough for him to get brainwashed by him during the arc.
    • During Yugi's duel with Kaiba at Duelist Kingdom, Kaiba has played Saggi The Dark Clown A weak monster with only six hundred attack points and a face down card. Yugi Currently has Dark Magician on the field and drawing Gaia The Fierce Knight wonders why Kaiba played such a weak card.
      You'd Expect: For him to realize something is up and Kaiba's goading him into attacking with Saggi as Bait and not do anything. After all, Kaiba's a champion duelist, so he's likely got something planned
      Instead: He attacks and destroys Saggi with Gaia.
      Result: Kaiba reveals that Saggi had The Crush Card Virus put on him with the face down and activates it and monsters in Yugi's deck with an attack power over 1500 are forbidden from being played from now.
    • In the Orichalcos saga, Raphael is dueling Yami. Raphael is a very good duelist and hasn't resorted to using the 'Seal of Orichalcos' card, a card which powers up all the monsters on the user's side and means the loser would have their soul trapped. Raphael even switches ownership of the card to Yami, so that there is literally no chance of anyone losing their soul unless Yami is unbelievably character-derailingly stupid enough as to use the card himself, despite there being no reason to do so.
      You'd Expect: Despite how much Yami loves winning card games, he realises that there are currently no stakes in the match whatsoever, no negative repercussions for losing, and it would be in everyone's best interest to accept a harmless loss rather than risking his and his opponent's soul for possible victory.
      Instead: "I must play the seal of Orichalcos or I risk losing this card game!" Once again, the abridged series had a field day.
    Yugi: "Pharaoh, no matter what, you mustn't use that card! It takes people's souls!"
    Yami: "Don't worry, Yugi. There's absolutely no reason to even use it."
    Yugi: "That's right. There are no stakes involved in this Duel. Even if you lost this card game, nothing would change at all."
    Yami: "Wait, what's that now? I could lose?
    Yugi: "Well yeah, I mean your dragon Timaeus is frozen in place and you really don't have that many Life Points left. But again, there's literally nothing at stake here and a single loss wouldn't really hurt—"
    Yami: "Curse you, Rafael! You've given me no choice!"
    Yugi: "Wait, what?"
    Yami: "I have to activate The Seal of Orichalcos!"
    Yugi: "No! No, you don't!"
    Yami: "Too late, it's activated! (the Seal appears on Yami's forehead) I hope you're happy, Rafael! The guy who totally made me do this against my will!"
    • Result: Yami still loses, except now instead of it being a harmless loss which everyone can accept with no repercussions at all, he loses his soul as well, requiring a Heroic Sacrifice on the part of Yugi so that Yami can continue making unbelievably stupid series so that the plot can progress.
    • Upon figuring out that Odion isn't really Marik, the real Marik himself considers using the fake god card to cover up his identity.
      You'd Expect: Since Joey is about to lose in one attack by Serket, he decides against it and let Odion finish him off. Not only will he have another ally he can bank on but if he keeps acting innocent, then not only will the heroes keep guessing on who the real Marik is but even better, assume that he just fled from Battle City.
      Instead: He orders Odion to use the fake Ra, which not only causes Joey to win a duel that he shouldn't have but also allows Marik's Superpowered Evil Side to appear and causes more havoc than his original self.
    • During the last segment of the duel against Yami Marik, Mai currently has a Cyber Harpie Lady on the field and she is also capable of multiplying them into 3 using Elegant Egotist. Marik on the other hand, only has 1 monster in face-up attack position and 1000 life points, leaving him open for a direct attack for game. At this point, Mai might be tempted to use the Winged Dragon of Ra.
      You'd Expect: As shown from the previous duel between Jounouchi and Rishid, attempting to use Ra without proper testing is proven to be highly dangerous and since she would keep the card if she managed to defeat Marik, she decides to simply test it by dueling someone else like Yugi or Jounouchi where nothing is at stake.
      Instead: She decides to tribute summon Ra without having any idea how it works nor does she even learn what would happen if she did it without any preparations. Ra remained in Sphere mode because she does not know how to properly use it and allow Marik to take control of it by simply chanting the incantations and cost Mai not only the match but also put her life at risk.
  • Yu-Gi-Oh! GX:
    • It's eventually made abundantly clear that the Big Bad of the third season is specifically targeting Judai's friends and loved ones in order to inflict maximum pain on him, and will continue to target them as long as they're made a target for him/her/it.
      You'd Expect: Judai's friends to agree to back off and not provide a target for the Big Bad, knowing Judai is The Ace and, with only himself going in to take care of the Big Bad, he has the best chance of doing so while cutting off the Bad's biggest advantage over him.
      Instead: They completely ignore Judai's pleas to this fact, dive in with him, and die off one by one as they become sitting ducks for the Big Bad.
    • Yet again when Judai is facing Yubel. Yubel has a card that allows her opponent to choose a card to put in her hand. Meanwhile Judai has finally found a way to defeat Yubel's nigh invincible monster with his overly powerful one. He equipped a magic card that allows him to bypass the ability that has caused him so much grief. So he then has to choose one of Yubel's cards to put in her hand.
      You'd Expect: Judai to pick Super Polymerization. As far as we know, there wasn't anything Yubel could have summoned with it (she hadn't set Chain Material at that point), unless she could pull out some kind of fusion of Rainbow Neos and her own monster. Even with the associated trauma, there didn't seem to be anything it could do in that situation.
      Instead: He picks Mystical Space Typhoon. A card that destroys Magic cards. Such as the one that is stopping Judai from LOSING. Yubel does destroy it and Judai is in an even WORSE position.

  • Yu-Gi-Oh! 5D's:
    • Yusei has faced off against Machine Emperor Wisel, a monster capable of absorbing Synchros. He defeated it with some trouble, but not before it briefly ate Stardust.
      You'd Expect: Yusei to realize that his Deck already has plenty of cards that can counter Wisel. He used Savior Star Dragon to defeat it, but even without relying on supernatural power, Junk Archer could banish Wisel and destroy its parts, Turret Warrior isn't a Synchro, and Turbo Warrior could ignore its effects and rip it apart at its leisure. And even then, he has plenty of Spells and Traps that shut it down, like Scrap-Iron Scarecrow or Panic Wave.
      Instead: He lives in complete fear of Wisel for about forty episodes, having nightmares about it and trying out terrible non-Synchro strategies before seizing on the idea of using the Fusion Draco-Equiste. When he finally goes in for Round 2 against Wisel, he tries neither any of the above tactics nor Draco-Equiste, and only survives because of a literal Deus ex Machina handing him a super-card.
    • Team 5Ds vs. Team Unicorn. Team Unicorn's starting duelist thrashes Jack and Aki, and does serious damage to Yusei before going down. Team Unicorn's second duelist runs a mill deck, reducing Yusei's deck to 4 cards before going down. Team Unicorn's last duelist finds himself in the position where ending his turn would have won him the duel, as Yusei has 0 cards left in his deck.
      You'd Expect: Him to actually, you know, do so.
      Instead: He decides he wants to win with honor or some tripe like that. So he attacks Yusei's monster, allowing Yusei to activate an effect that wins the duel for Team 5Ds.
    • It's not entirely his fault, though. Breo is the Second Wheeler for Team Unicorn. Both his teammates play very aggressive, offensively-minded strategies that deplete the opponent's LP quickly.
      You'd Expect: Breo to play an aggressive Deck as well, to finish off opponents weakened by Andore's raw damage.
      Instead: Breo plays a Mill Deck. Mill Decks are based around completely ignoring the opponent's LP. It's a good Mill Deck, but it also means that he'll effectively be fighting a fresh opponent, and that Jean's job isn't going to be made any easier.
      Result: Breo fails to deplete Yusei's remaining 2000 LP, inflicting minimal damage over the course of the Duel. As a result, Jean ends up fighting Yusei basically fresh.
    • Team 5Ds vs. Team Ragnarok. Harald is shown to have Interdimensional Matter Transporter in his hand, a card that removes from play one of his Monsters for a turn. He also has Birthright and Soul Resurrection in his hand (itself a What An Idiot, since both those cards are useless in his Deck). He needs to discard a card to activate the effect of Valkyrie of the Nordic Ascendant.
      You'd Expect: Harald to discard one of his junk cards and Set IMT as a precaution, since it has the potential to save one of his monsters from an effect that would destroy or weaken it.
      Instead: He discards IMT and leaves Birthright and Soul Resurrection to sit in his hand and do nothing.
      Result: On Harald's last turn, Yusei activates Zero Force before Gjallarhorn can trigger, reducing the ATK of all Harald's Gods to 0 and causing it to deal no damage. Had Harald activated IMT in response, he could have removed from play one of his Gods and Summoned it back during the End Phase with full ATK, winning the game.

  • Yu-Gi-Oh! ARC-V:
    • Leo Akaba has raised Yuri to be a powerful duelist, but also caused him to turn into a ruthless Blood Knight, and since Yuri is one of 4 components of Zarc, who Leo has been trying to stop the whole time, having him wander around and dueling/defeating the other 3 parts of Zarc is a big no-no.
      You'd Expect: For Leo to card Yuri ASAP, and seal him away in a safe/vault that is locked in a way that only Leo Akaba can unlock. Even if Yuya, Yuto, and Yugo somehow merge, Zarc still can't return unless Leo releases Yuri, which won't happen.
      Or: If carding Yuri is too hard on him emotionally, to just give Yuri strict instructions to never leave the Fusion Dimension and keep an extremely close eye upon him - and if one of the other halves of Zarc just so happens to stumble into the Fusion Dimension, just have them carded ASAP and the card they are trapped in sealed away.
      Instead: Leo doesn't take any precautions against the possibility whatsoever.
      Result: Yuri ends up stumbling upon Yugo and defeats him, absorbing him and being one step closer to reviving Zarc...which he eventually does after dueling Yuya.