"Worm" (ワーム Wāmu) is a large archetype of monsters, the first support for which was introduced in Hidden Arsenal. Unlike other archetypes, "Worm" is divided between two entirely distinct play styles, only one of which has archetype support. Additionally, several other unrelated cards, such as "Worm Drake" and "Dimensionhole" are in this archetype.

The LIGHT Reptile-Type "Worm" monsters were introduced as part of the early Duel Terminal sets. They are used by Callisto in Yu-Gi-Oh! 5D's World Championship 2009: Stardust Accelerator.

The Insect-Type "Worm" monsters have effects that mill the opponent's Deck. They are used by Trudge during his time as a Shadow Drone in the Yu-Gi-Oh! 5D's anime.

"Dimensionhole" ("Worm Hole" in Japanese) and "Electric Virus" are also "Worm" cards because they have 「ワーム」 in their Japanese names.

Insect-Type Worms

These Worms are a series of Insect-Type monsters, which focus on milling the opponent's Deck. Visually, they resemble caterpillars and centipedes.

List of Insect-Type Worms

 Card typeATKDEFLevelAttribute
Aztekipede, the Worm WarriorMonster Card
Effect Monster
Dungeon WormMonster Card
Normal Monster
Galaxy WormMonster Card
Effect Monster
Needle WormMonster Card
Effect Monster
Scrap WormMonster Card
Effect Monster
Shield WormMonster Card
Effect Monster
Warm WormMonster Card
Effect Monster

Playing style

Having Insect support cards like "Lair Wire" and "Insect Neglect" while also having "Doom Dozer" and "Aztekipede" in your Deck means you will rely heavily on having Insect-Type monsters in your Graveyard which you can remove from play. Therefore, it would be a good idea to use cards that mill both players to steadily replenish your Graveyard's stock of Insect-Type monsters. Cards like "D.D.R. - Different Dimension Reincarnation" can be used to bring back monsters like "Shield Worm" and "Warm Worm" in late game to force your opponent to send away even more cards.

Searchers like "Howling Insect" and "Gokipon" can be of great use as well by populating your Graveyard while getting more monsters to the field and your hand.

Since you need to send insect monsters to the Graveyard anyways, it maybe a good idea to use some that benefit you from being in the Graveyard, like "Skull-Mark Ladybug".

This Deck concentrates on using "Warm Worm", "Needle Worm" and "Shield Worm" to mill your opponent's Deck. "Chainsaw Insect" is used for a beatstick and to force your opponent to draw. "Doom Dozer" and "Aztekipede, the Worm Warrior" can be used with "Robbin' Zombie" to send more cards from the Deck to the Graveyard. "Assault on GHQ" can be used on the used up "Needle Worm" or on a "Warm Worm".

Recommended cards

Reptile-Type Worms

These Worms are a collection of LIGHT-Attribute Reptile-Type monsters which focus heavily on Flip effects. They were introduced in Duel Terminal - Synchro Awakening!! and even have their own set, Duel Terminal - Invasion of Worms!!.

The name of each Worm begins with a different letter of the alphabet, including all letters from A to Z. Their effects also seem to get more complicated as they progress in the alphabet. For example, "Worm Apocalypse" has an effect only a few words long. However, "Worm Yagan's" effect is 56 words long and much less straightforward. "Worm Zero", the "boss" monster of Worms features several powerful effects and is a Fusion Monster.

Reptile "Worms" are mostly composed of Flip monsters that generate hand advantage by allowing the player to draw extra cards or add extra cards to their hand or create field advantage by allowing the player to control the positions of cards and permitting cards on either side of the field to stay or not. The non-Flip monsters allow the player to control the position of monsters on the field and flip the player's own monsters face-down or have their effects activated when cards are Set face-down in general.

"Worm Drake" is an EARTH Reptile-Type monster with "Worm" in its name, so it qualifies for some of the Reptile-Type "Worm" support, despite not being part of the archetype.

Duel Terminal Story

The storyline establishes that the "Ally of Justice" monsters were created specifically to combat the "Worms" (specifically the LIGHT Reptile-Type "Worms") through a joint effort of 4 Duel Terminal clans. This is apparent through several crossover cards within the "Ally of Justice" series.

Later on in the battle, captured Worms were converted into "Ally of Justice" monsters (i.e., "Ally of Justice Enemy Catcher"), which led to the "Mist Valley" clan falling out of favor with the other alliance members. They halted support for the "Ally of Justice" project and continued fighting the battle alone, though this decision was short-lived. The legendary "Dragunity" warriors returned to defend the Mist Valley, once their home, and joined forces with the clan taking up residence there. The greatest weapon of the "Worms" was "Worm Zero", which traded the threat of endless waves of "Worms" for the crushing presence of "Zero", whose arrival on the Duel Terminal world was enough to severely disturb time and space.



Visually, they resemble hideous alien creatures of a predominant single color, and often possess lipless toothy vertical mouths. However, they also incorporate biological features from real-world Worms, including transparent skin and external mucus.

Relation to Latin alphabet

The names of all LIGHT Reptile-Type "Worm" monsters begin with the word "Worm" followed by another word. The subsequent release of new cards are alphabetical. All LIGHT Reptile-Type Worm monsters were originally introduced in Duel Terminal.

 Card typeATKDEFLevelLore
Worm ApocalypseMonster Card
Effect Monster
3002001FLIP: Target 1 Spell/Trap Card on the field; destroy that target.
Worm BarsesMonster Card
Effect Monster
1,4001,5003When this card is Normal Summoned: Target 1 Defense Position monster; change that target to face-up Attack Position.
Worm CartarosMonster Card
Effect Monster
1,2005004FLIP: Add 1 Level 4 or lower Reptile-Type "Worm" monster from your Deck to your hand.
Worm DimiklesMonster Card
Effect Monster
1,7001,4004FLIP: This card gains 300 ATK and DEF.
Worm ErokinMonster Card
Effect Monster
2,4001,2006This card cannot be Special Summoned. Once per turn, select 1 face-up Reptile-Type "Worm" monster on the field and change it into face-down Defense Position.
Worm FalcoMonster Card
Effect Monster
5008002FLIP: Change all face-up Reptile-Type "Worm" monsters you control to face-down Defense Position, except this card.
Worm GulseMonster Card
Effect Monster
1,5003004Each time a face-down Defense Position monster is flipped face-up, place 1 Worm Counter on this card. This card gains 300 ATK for each Worm Counter on it.
Worm HopeMonster Card
Effect Monster
8001,5001FLIP: When this card is flipped face-up by an opponent's monster's attack, draw 1 card.
When this card is sent from the field to the Graveyard, send 1 card from your hand to the Graveyard.
Worm IllidanMonster Card
Effect Monster
2,0001,8005Each time a card is Set on your side of the field, place 1 Worm Counter on this card. You can remove 2 Worm Counters from this card to select 1 card your opponent controls, and destroy it.
Worm JetelikpseMonster Card
Effect Monster
1,20003FLIP: When this card is destroyed and sent to the Graveyard this turn: Special Summon it from the Graveyard in face-up Defense Position.
Worm KingMonster Card
Effect Monster
2,7001,1008This card can be Tribute Summoned in face-up Attack Position by Tributing 1 Reptile-Type "Worm" monster. You can Tribute 1 Reptile-Type "Worm" monster to select 1 card your opponent controls, and destroy it.
Worm LinxMonster Card
Effect Monster
3001,0002FLIP: During each End Phase, if this card is face-up, draw 1 card.
Worm MillidithMonster Card
Effect Monster
4001,6004FLIP: You can equip this card to a monster your opponent controls as an Equip Card. Inflict 400 damage to the controller of the equipped monster during each Standby Phase.
Worm NobleMonster Card
Effect Monster
1,5002,4006FLIP: If this card is flipped face-up by an opponent's monster's attack, inflict damage to your opponent equal to half the attacking monster's ATK.
Worm OperaMonster Card
Effect Monster
4008002FLIP: All face-up monsters on the field lose 500 ATK, except Reptile-Type "Worm" monsters.
Worm PrinceMonster Card
Effect Monster
2,2004006If this card destroys an opponent's monster by battle, you can add 1 Reptile-Type "Worm" monster from your Deck to your hand. If you do not control at least 1 other Reptile-Type "Worm" monster, destroy this card during the End Phase.
Worm QueenMonster Card
Effect Monster
2,7001,1008You can Tribute Summon this card in face-up Attack Position by Tributing 1 Reptile-Type "Worm" monster. Once per turn, you can Tribute 1 Reptile-Type "Worm" monster to Special Summon 1 Reptile-Type "Worm" monster from your Deck with a Level less than or equal to the Tributed monster.
Worm RakuyehMonster Card
Effect Monster
2,1001,2004This card can only declare an attack during the turn it was flipped face-up. If this card attacks, it is changed to face-down Defense Position at the end of the Battle Phase.
Worm SolidMonster Card
Effect Monster
1,0001,6004This card gains 100 DEF for each Reptile-Type "Worm" monster in your Graveyard. If your opponent takes Battle Damage from attacking this card, at the end of the Damage Step select 1 Spell or Trap Card your opponent controls, and destroy it.
Worm TentaclesMonster Card
Effect Monster
1,7007004Once per turn, you can remove from play 1 Reptile-Type "Worm" monster from your Graveyard. If you do, this card can attack twice during this turn's Battle Phase.
Worm UglyMonster Card
Effect Monster
1001001When you Tribute Summon a Reptile-Type "Worm" monster by Tributing this card, you can Special Summon this card from your Graveyard to your opponent's side of the field, in face-up Attack Position.
Worm VictoryMonster Card
Effect Monster
02,5007FLIP: Destroy all face-up monsters on the field, except Reptile-Type "Worm" monsters. This card gains 500 ATK for each Reptile-Type "Worm" monster in your Graveyard.
Worm WarlordMonster Card
Effect Monster
2,3501,8006This card cannot be Special Summoned. Negate the effects of Effect Monsters destroyed by battle with this card. If this card destroys an opponent's monster by battle, it can attack once again in a row.
Worm XexMonster Card
Effect Monster
1,8001,0004When this card is Normal Summoned, you can send 1 Reptile-Type "Worm" monster from your Deck to the Graveyard. If you control a face-up "Worm Yagan", this card cannot be destroyed by battle.
Worm YaganMonster Card
Effect Monster
1,0001,8004If the only monster you control is "Worm Xex", you can Special Summon this card from your Graveyard in face-down Defense Position. If you do, remove it from play when it is removed from the field. When this card is flipped face-up, select 1 face-up monster your opponent controls, and return it to it's owner's hand.
Worm ZeroMonster Card
Fusion Monster
Effect Monster
0102 or more Reptile-Type "Worm" monsters
For each Fusion Material Monster with a different name used to Fusion Summon this card, it gains 500 ATK, and also gains these effects: ● 2+: Once per turn, you can select 1 Reptile-Type monster in your Graveyard, and Special Summon it in face-down Defense Position. ● 4+: You can remove from play 1 Reptile-Type monster from your Graveyard to send 1 monster on the field to the Graveyard. ● 6+: Once per turn, you can draw 1 card.

Playing style

Worms are one of the largest archetypes (in terms of number of members), but they currently have only 2 non-monster support cards: "Worm Call" and "W Nebula Meteor". "W Nebula Meteor" can provide you with excellent draw power as well as the ability to use and recycle the Worm's effects. It is also the easiest method to Special Summon "Worm Victory", "Worm King", and "Worm Queen" from your Deck.

"Worm Zero" potentially boasts the highest ATK of all "Worms" (with "Worm Victory"), gaining 500 ATK for every Reptile-Type Worm used for its fusion, and gains powerful effects determined by how many Fusion Materials were used.

"Worm Queen", "Worm Cartaros", "Worm Xex" and "Worm Prince" have powerful Deck thinning and monster searching effects. The effect of "Worm Queen" is a toolbox effect, similar to that of "Lonefire Blossom". The Deck thinning effect of "Worm Xex" is similar to that of "Armageddon Knight".

The Deck revolves around abusing the effects of "W Nebula Meteorite". Opening with with "Worm Xex" or "Worm Cartaros" along with this card can yield huge card advantage early on to make up for the Deck's relatively slow play. If you Summon "Worm Yagan" along with "Xex", you can activate "Nebula" on your opponent's turn, using "Yagan" to return one of their monsters to their hand. During the End Phase, you get to draw 1 card for each Reptile monster flipped face down by "Nebula" and can Special Summon a Level 7 or higher LIGHT Monster (notably "Worm King", "Worm Queen", or "Worm Victory").

Recommended cards

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