Labyrinth Builder to farm Kaiba Lvl 40

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update 30/05/2017

Note: This deck is now inefficient at farming because the opponent will attack even when you remove Labyrinth Wall with Dimension Gate.


Once you banish your Labyrinth Wall using Dimension Gate, Kaiba never declare attack. Then you can stall turns till you are ready to finish a duel by Over 9,999 Damage.

  • Union Attack: 7000 - 8000
  • Piranha: 6000 - 8000
skillLabyrinth Builder
Essential cards
Pack (Box reset)(Unnecessary)

Example deck

Union Attack

Mystical Beast of SerketGravekeeper's VassalA Cat of Ill OmenA Cat of Ill OmenSkelengelSkelengel
Crystal SeerCrystal SeerCrystal SeerDouble SummonUnion AttackUnion Attack
Temple of the KingsStormDragon TreasureSecret Pass to the TreasuresDimension GateDimension Gate
Dimension GateJar of Greed---Blue-Eyes Ultimate Dragon

Piranha (No Union)

Versago the DestroyerPiranha ArmyA Cat of Ill OmenA Cat of Ill OmenSkelengelSkelengel
SkelengelCrystal SeerCrystal SeerCrystal SeerBig KoalaDouble Summon
PolymerizationStormSecret Pass to the TreasuresGift of the MartyrDimension GateDimension Gate
Dimension GateJar of Greed---Master of Oz
Versago the DestroyerPiranha ArmyA Cat of Ill OmenA Cat of Ill OmenSkelengelSkelengel
SkelengelCrystal SeerCrystal SeerCrystal SeerBig KoalaDouble Summon
PolymerizationStormSecret Pass to the TreasuresGift of the MartyrDimension GateDimension Gate
Dimension GateJar of Greed---Master of Oz

Set skill

[Skill] descriptionUser
Labyrinth Builder
Shuffle 2 cards from your hand into the Deck to create "Labyrinth Wall" on your side of the field. This skill can only be used once per Duel.

Paradox Brothers


How to use this deck

Building a Labyrinth

Use the skill and special summon Labyrinth Wall when you have a Dimension Gate in your hand, shuffling cards that don't help you with draws into your deck. Once you have labyrinth on the field, and set a dimension gate, activate dimension gate right away on Kaiba's turn to banish your labyrinth, or activate it when Kaiba targets your Labyrinth with his Enemy Controller.

  • If you don't have dimension gate in your hand, use your other draw cards or set A Cat of Ill Omen to get it from your deck.
  • Dimension Gate is used on Labyrinth to protect it from Kaiba's Enemy Controller as well as his D.D. Warrior.
  • Since Kaiba doesn't have any attack increasing cards, his highest attack monster is his Blue-Eyes White Dragon with 3000 attack.
  • With Blue-Eyes unable to break through Labyrinth, enemy controller can't target banished monsters, and the AI not using D.D. Warrior to trigger dimension gate's effect, this setup essentially nullifies all 3 of Kaiba's threats.

The setup

After you have labyrinth on the field, you just need to banish it using Dimension Gate, then keep drawing the cards using Skelengel and Crystal Seer to speed up the process.

  • Make sure to use crystal seer's effect at least once, to make sure that essential cards are not the last card in your deck, by sending ones you don't need to the bottom of the deck.
  • If you don't have any draw cards, then just keep passing the turns.
  • When you have 1 card left in your deck, set your Spell Reclamation (if you use it instead of 2 Union Attack).

Last turn

Make sure that you use Storm first, before summoning your monsters. This is to prevent Kaiba from using his Enemy Controller on you.

  • Use Storm to destroy your dimension gate, as well as all of Kaiba's set spell/trap cards.
  • Use Temple of the Kings and then Double Summon to get your Vassal and fusion monster to the field (through Serket).
  • Secret Pass to the Treasures on to Vassal, and then double union attack, or 1 union + spell reclamation.
  • Equip your BEUD with Dragon Treasure, or any other attack increasing cards that you have.
  • Attack directly with vassal


  • While this deck does have consistent win rate, there is still a possibility of not getting dimension gate early in the duel, and using Labyrinth without dimension gate will most likely result in a fail due to D.D. Warrior.
  • This deck REQUIRES Dimension Gate, and it is only obtainable during Paradox Brothers' event. There are no other alternatives to the card, and having 3 in the deck increases the chance of getting it early, which is important.
  • Temple of the Kings can sometimes be buggy, and not allow you to special summon a monster, despite having monsters in your extra deck and/or hand. Be sure to check the in-game news if there are any issues still occurring about this, or if it's fixed.


Hot New Top
Games forgot to add 3 massive morphs on this farm deck
<< Anonymous(BigD)
BigD Reply
This deck does not work on Bakura I've used this crap and lost 3x's in a row he keeps using burning land and if he can't destroy your wall he'll just sacrifice his stronger monster using that stupid spell and he has more than one so yeah. Consistency my ass
<< Anonymous
Anonymous Reply
This isn’t a bakers farm deck you shit
<< Anonymous
Lesbios Reply
like when I see the word 'farm decks' i imagine poor country workers tilling the fields, hoping that on occasion a rare card will pop up, half dirty with manure, half shiny as if new, such is the process of the farm
So now he will attack directly even dgate is in the field. Lab builder now is useles to farm kaiba
so dimension gate farms make no sense ?
<< Anonymous
Me, Myself and I Reply
Bingo, he will get rid of your Dimension Wall with a spell card wich name I do no remember and will attack it with D.D. Warrior
Completely useless now, he attack a ignoring dimension gate. Is this a bug?
<< Anonymous
Anonymous Reply
its not a bug the ai change
Doesn't work anymore. Kaiba now attacks even if Labyrinth Wall is banished with Dimension Gate.
As noted by several comments below, since the last update, Kaiba now applies Twister+ECon combo to destroy your DimGate and switch your Laby into attack position. Here is a deck that performs extremely well with this new AI (for the moment 100% winrate tested on 10 duels). The deck includes 9 cards with drawing effects, to offer both speed and consistency. Some hints to use the deck:

* Early steps: as usual, do not set Laby until you got DimGate in hand. Then try to set ASAP either a second DimGate or a Curse of Royal, to counter a possible Twister+Econ combo. Thanks to the large amount of drawing cards, this should be obtained quickly. After the first Twister, set another DimGate/Curse as Kaiba will play another Twister later
<< Anonymous(OIOIO)
Anonymous Reply
i got a problem with d.d.warrior how do i handle him? i protect the wall with dg, but he will just attack directly and finish me turn 3...
<< Anonymous
Anonymous Reply
same here, i gotta use up my DGs and take direct attacks from d.d.warrior and am defenseless once he comes up with the econs...
all his monsters attack while wall is banned, is that new? fucked up shit...
<< Anonymous(OIOIO)
XO Reply
since he doesnt care about ur banished wall he will directly attack with all his monsters, so yo got to have ur wall up on the field. If he now summons d.d. u have to ban wall with DG and either take the direct 1200dmg or if youre lucky u got another monster he will attack and waste 1 of the d.d.
BUT u have to use the DG to dodge d.d. and therefore he will have 2 econ combos and 2 d.d. to get rid
<< Anonymous(OIOIO)
XO Reply
of your wall while u have 3 DGs at best!!
so this deck does not work in most cases except if you can counter 1 econ combo with curse and block both d.d. with DG+another monster, which rarely happens
got 3/10 wins using this, sadly :/
Finally completed stage 58. What was holding me back was 3 consecutive wins against Kaiba at Lvl 40.
<< Anonymous
Anonymous Reply
It isn't hard to beat Kaiba 40
Kaiba now use twister in the dimension gate!!!!! :(
<< Anonymous(Cerpin)
Anonymous Reply
That has happened to me many times. I only got one victory by using a similar "Piranha (No Union)" deck w/ Labyrinth Builder skill. After that, the Twister+EC combo has been biting me in the butt. I only have one DG trap card. Is there a way to achieve victory with just one DG trap card?
* Mid steps: once you've got your 3 DimGate/Curse cards, you may relax and use your turns to attack Kaiba's heavy monster with you Crystal/Skelengel/Mimic to reach 1000LP or less. When performing some maths, you may even reach 100LP to get the super bonus assessment.

* Final step: this is a funny one ! First special summon Darkflare Dragon by banishing a Skelengel/Cat pair. Then play WingBeat to destroy Kaiba's backrow and bring your Laby back. Apply Sword/Shield to strength your Laby and weaken Kaiba strong monsters. Then special summon Darkflare again with another Skelengel/Cat pair, and finish with the usual Vassal/Union combo. Note that Secret Path is not needed in the deck, because Sword/Shield will always bring the ATK of at least one monster below 1500ATK, so the 10k damage bonus is guaranteed thanks to the 11500 final ATK of your Vassal. The picture below shows that even in the worst case with only high level monsters on the field, the 10k damage is obtained.
<< Anonymous(OIOIO)
MasterEric Reply
You must have had amazing luck because this deck is certainly not 10/10 consistent. I have tried this deck 3 times, and 2 of them I didn't end up getting a second Gate and I lost.
<< Anonymous(MasterEric)
Thanks for the feedback, MasterEric. However since my first post, I made other tests with this deck, and currently I got 24 wins and 1 loss. Hard to believe that only luck explains such a winrate. I guess you may play something wrong in the first turns. Could you give some details ? Basically the second Gate is only needed when Kaiba gathers 2EC+1Tw or 1EC+1Tw+1DD which usually needs some time.
As presented in the picture below, you can reach an easy 8000 Duel Assessment as soon as you have 2 glossy cards in your deck. When you don't have these glossy cards, you may still get 8000 DA by trying to finish the duel with only 100LP.

Last comment: Magical Mallet may be used in the first turns if your starting hand is really bad. But you may replace Mallet with your own idea. Suggestions welcome...
Folks, what are you talking about? Kaiba "twister-ing" Dimension Gate? FYI, I tried battling Kaiba 3x with my good old Kaiba farm deck, and still NOTHING HAPPENED or better, nothing really changed? Were you trolling the people here?
<< Anonymous(Huh???)
Anonymous Reply
Did you update to 2.0? Kaiba does now use twister on d gate. But it didn't happen till after the update. Or maybe you an rng god
<< Anonymous
Anonymous Reply
Yes, he does use it now. Just got wrecked
<< Anonymous(Huh???)
@Huh Reply
You are wrong, the AI has changed with the last game update, now Kaiba plays Twister on Gate then use ECon to change position of Many and kills you. Even at Lvl30 it plays that combo. Fortunately I got my 3 Econ, 3 BEWD and 3 Vigilance before the AI upgrade. Sorry for the newbies...
<< Anonymous(Huh???)
@Huh Reply
You are wrong, the AI has changed with the last game update, now Kaiba plays Twister on Gate then use ECon to change position of Many and kills you. Even at Lvl30 it plays that combo. Fortunately I got my 3 Econ, 3 BEWD and 3 Vigilance before the AI upgrade. Sorry for the newbies...

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Comments (updated every hour)

but even if you manage to kill Wiz they will probably summon Wiz again in the GY with spell card ...
I've seen that thing in action from an NPC's deck. It would be really helpful for my deck!
Haha it's pretty nasty going second when going against fur hire deck. In case of keeping ...
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