OBSOLETE: (LVL 40) Labyrinth Builder + Union Attack

Deck by tzeentchianf
Deck Overview
Deck Consistency
Deck Skill
Character Skill
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.
Draw Simulator
Deck Summary

This deck is obsolete: Marik's decklist has changed.


Yami Marik has many ways of whittling down your LP. He also plays "Masked Beast Des Gardius", which has 3300 ATK, and when destroyed, it steal a monster from your side of the field. This double threat combination can make winning the duel difficult, let alone farming.

First Turn:

When you open up the duel, you should always bring out Labyrinth Wall first. Marik has Masked Beast Des Gardius at 3300 ATK, which poses a direct threat. Typically, the Masked Beast will come out on Marik's second turn or later. This gives you one or more turns to draw into Sorcerous Spell Wall, or search it using Planet Pathfinder. When both Labyrinth Wall and Sorcerous Spell Wall are on the field, you are in a stable position to farm.


The Goal of this deck is to draw through your deck before the skill "Shadow Game" can eliminate either you or Marik. Keep an eye on both life point totals and use Rain of Mercy as needed to keep both duelists alive until you complete your farming run. Before your last turn, remember to set two copies of Spell Reclamation

Last Turn:

  • Switch your Labyrinth Wall into attack mode and activate Shield and Sword
  • Special Summon Fiend Megacyber
  • Summon Gravekeeper's Vassal; target Gravekeeper's Vassal with Secret Pass to the Treasure, then with Union Attack
  • Recycle Union Attack using Spell Reclamation, use again on Vassal 
  • Enter the Battle Phase and play Anti-Spell Arrows from your hand 
  • Attack directly to complete the farming run
Replacement/Tech Cards
Card Explanation
Union Attack

If you have multiple copies of Union Attack, sub out Spell Reclamation as needed

Shard of Greed

An extra Shard of Greed can be used to draw through the deck faster, and can forgo the need to play Rain of Mercy. This can be risky though

Yellow Luster Shield

This card is quite common and does the same job as Sorcerous Spell Wall. Yellow Luster Shield is an alternative to Sorcerous Spell Wall, but it cannot be searched by Planet Pathfinder and takes up a Spell/Trap Zone. 

For those lacking The Fiend Megacyber, this card is a viable alternative. However, be aware that two copies of spell reclamation create a large combo that can be difficult to pull off

Acidic Downpour

For even more consistency, use with Yellow Luster Shield.