T.G. Diabellstar is an Aggro deck in Yu-Gi-Oh Master Duel, focusing on Synchro Summoning using the titular archetype, while making use of the Diabellstar Deck Engine. Check out the core deck list, key combos, as well as how to play & counters!

T.G. Diabellstar Deck List

Main Deck: 40 cards
x3	x3	x3	x3	x3
x2	x2	x2	x1	x1
x1	x1	x3	x3	x3
x1	x1	x1	x3	x1
Extra Deck: 15 cards
x2	x2	x2	x1	x1
x1	x1	x1	x1	x1
x1	x1	-	-	-

T.G. Diabellstar Breakdown

Tier List Evaluation

Tier Ranking
Tier 1
Deck Archetype		Deck Difficulty
Aggro		Hard
Deck Evaluation
Extremely powerful Synchro-centric Deck with a powerful endboard Combos can start off of one combo, and boss monsters have powerful disruptions Weak against handtraps, and restrictive against non-"T.G." monsters

T.G. Diabellstar Deck Guide: How to Play

Playstyle and Win Condition

Tech Genus, or better known shortened as T.G., is an archetype that specializes in Synchro Summoning, to the point of having Synchro Tuner Monsters that can conduct Synchro Summons during the opponent's turn.

While a powerful concept on its own, it does need a bit of support here and there. In this Deck Recipe, it has been bolstered by Deck Engine that debuted with the release of the Ride Into the Future Selection Pack: the Diabellstar Engine.

Diabellstar Engine

Taken from the Snake-Eye Deck List & Card Guide, Diabellstar the Black Witch and a handful of cards can serve as a Deck Engine that can strengthen other Decks.

Diabellstar the Black Witch is often the combo starter for this Deck Engine, and for those that like sending cards to the GY, this is a very good card.

On Special Summon, it can set a "Sinful Spoils" Spell or Trap straight from the Deck. Easily, the card to Set and activate afterwards is Original Sinful Spoils - Snake-Eye, which connects this Deck Engine into any Level 1 FIRE monster. In this Deck's case, it's Snake-Eye Ash and T.G. Rocket Salamander.

If Diabellstar isn't on hand, WANTED: Seeker of Sinful Spoils simply adds it from the Deck or GY to the hand. It also has a GY effect; banishing itself lets players retrieve another "Sinful Spoils" Spell or Trap from the GY, place it to the bottom of the Deck, then draws a card.

T.G. Main Deck

Among the "T.G." monsters in the Main Deck to have multiple copies of, these three are the most crucial. T.G. Rocket Salamander, having been recently added to Master Duel thanks to the Ride Into the Future Selection Pack, enables the Deck's shenanigans by Special Summoning a Level 1 "T.G.". monster from the Deck, and can Special Summon a Level 4 Machine "T.G." monster from the GY once per turn.

T.G. Gear Zombie can Special Summon itself from the hand by targeting a fellow "T.G." monster and reduce their ATK by 1000. The other monster with multiple copies is T.G. Screw Serpent, which can Special Summon another Level 4 "T.G." monster upon being summoned, and can increase a monster's Level by 1 as a GY effect.

T.G. Booster Raptor and T.G. Drill Fish can be Special Summoned from the hand when the player controls another "T.G." monster.

Despite being a Tuner, T.G. Tank Grub can be used for a Synchro Summon as a non-Tuner monster. If it gets used as material, it can summon a Level 1 T.G. Token , which can be used for future plays.

Hand Traps

As you need space for your "T.G." monsters, space for hand traps is a little tight. Maxx "C" and Ash Blossom are mandatory in the current meta, and a single copy of Droll & Lock Bird is added to counter searches and fellow users of the EARTH Insect-type hand trap.

Infinite Impermanence is extremely useful if you have it as part of your starting hand during the first turn, as the well-timed used of it can deny the opponent a full combo if they do not have any way to pivot.

Spell & Trap Cards

While T.G. All Clear is on the field, "T.G." monsters become Machine-type, and enjoy a small ATK boost. It also provides an additional Normal Summon to a "T.G." monster once per turn.
The Continuous Spell Card is mosty used, however, for its search effect by destroying a "T.G." monster from the hand or field.

To get the needed cards as soon as possible, T.G. Limiter Removal can be used. By discarding a card, it can add two different "T.G." monsters from the Deck. Banishing it from the GY can shuffle a "T.G." monster from the GY back to the Deck, or simply add it back to the hand. Choose wisely, however, as you can only use one of the two effects in a single turn.

T.G. Close can be searched out as the quintessential Counter Trap against Spells, Traps and Monster effects. Savvy players can cheat out with a neat combo featuring Shooting Star Dragon T.G. EX, as it can be Set from the GY if a Synchro Monster you control gets banished.

Extra Deck Options

T.G. Mighty Striker can Synchro Summon during the opponent's turn, and when sent to the Monster Zone to the GY it searches out a "T.G." card. It can also searches out a "T.G." Spell or Trap when this card is Synchro Summoned.

Try having T.G. Hyper Librarian on the field for as long as possible before using it as Synchro Material; for every Sycnhro Summon you do, you draw a card. This can easily refill your hand resources after a huge combo play.

T.G. Star Guardian lets players Synchro Summon during the opponent's turn via Quick Effect, which makes access to Level 10 and Level 12 Synchro Summonss very slippery. It also provides a free Special Summon of a "T.G." monster during the Main Phase, and it adds a "T.G." fr om the GY to the hand upon being Special Summoned.

The newest addition to the archetype is T.G. Over Dragonar, which also enables more plays for the archetpye. On Synchro Summon, it Special Summons any number of T.G. monsters from your GY. For "T.G.", it can be compared to Soul Charge without its drawbacks.

There are four different boss monsters avaialbe for this archetype, all being under the "T.G." archetypes. T.G. Blade Blaster can negate Spells or Traps that target this card once per turn via Quick Effect and a discard. It can also banish itself as a form of protection, and it returns to the Field on the next Standby Phase.

Shooting Star Dragon T.G. EX is one of the newer additions, and has less restrictive materials compared to its original counterpart, Shooting Star Dragon. It can Special Summon itself from the GY by tributing 2 Synchro Monsters, it can negate an attack once per turn, and it has an effect that can negate Spells or Traps that does not have a once-per-turn clause.

The two Level 12 "T.G." Synchro Monsters are key to have on the field as soon as possible. T.G. Halberd Cannon is the original, can negate a summon once per turn, and can Special Summon a fellow "T.G." monster from the GY when sent there itself.

The newer card, T.G. Glaive Blaster can banish a Special Summoned Extra Deck Monster, and it is a Quick Effect that can be potentially used multiple times in a single turn. It can also Special Summon a monster that was banished to its side of the field, completely ignoring Summoning conditions.

When Link Summoned, T.G. Trident Launcher can Special Summon up to 3 "T.G." monsters onto the Main Monster Zones pointed by its Link Markers--one from the hand, Deck and Graveyard respectfully. While on the field, "T.G." Synchro Monsters are immune to targeted card effects when they are on Monster Zones pointed to by this card.

Core Combos and Interactions

T.G. Sample Hand into Shooting Star Dragon T.G. EX

Sample Hand 1
Step	Description
1	Normal Summon T.G. Rocket Salamander. Activate its effect, and Tribute itself to Special Summon T.G. Screw Servant from the Deck.
2	Upon being Special Summoned, trigger the effect of T.G. Screw Servant; Special Summon T.G. Rocket Salamander back from the GY.
3	Using T.G. Rocket Salamander and T.G. Screw Serpent as materials, Synchro Summon T.G. Over Dragonar.
4	Upon being Synchro Summoned, activate T.G. Over Dragonar's effect; Special Summon as many "T.G." monsters from the GY onto the field. In this case, Special Summon T.G. Rocket Salamander and T.G. Screw Serpent.
5	Once again using T.G. Rocket Salamander and T.G. Screw Serpent as materials, Synchro Summon T.G. Star Guardian.
6	T.G. Rocket Salamander and T.G. Screw Serpent as materials, Synchro Summon T.G. Star Guardian. Upon being Special Summoned, you can retrieve one "T.G." monster from the GY to add back to your hand.
7	(Optional) If you have any more additional plays to do, you can use T.G. Star Guardian's effect to Special Summon a "T.G." monster from the hand.
8	Using T.G. Star Guardian and T.G. Over Dragonar as materials, Synchro Summon Shooting Star Dragon T.G. EX.

One-Card Combo featuring T.G. Limiter Removal

Card Needed
Step	Description
1	Activate T.G. Limiter Removal from the hand; discard a card you do not need from your hand, and search out T.G. Rocket Salamander and T.G. Gear Zombie from the Deck.
2	Normal Summon T.G. Rocket Salamander. Then, trigger the effect of T.G. Gear Zombie from the hand; target Rocket Salamander to make it lose 1000 ATK, then Special Summon itself from the hand.
3	Activate T.G. Rocket Salamander's ; tribute itself, and Special Summon T.G. Screw Serpent from the Deck. Upon being Special Summoned, trigger the latter card's effect; Special Summon Rocket Salamander back from the GY.
4	Using T.G. Rocket Salamander and T.G. Gear Zombie as materials, Synchro Summon T.G. Mighty Striker. Trigger T.G. Mighty Striker's effect upon being Synchro Summoned; add T.G. All Clear from the Deck to your hand.
5	Activate T.G. All Clear; target and destroy T.G. Mighty Striker, then add T.G. Tank Grub from the Deck to your hand. This triggers T.G. Mighty Striker upon being destroyed; send T.G. Close from the Deck to the GY.
6	Because of T.G. All Clear's effect, you can conduct an additional Normal Summon for a "T.G." monster. Use it, and Normal Summon T.G. Tank Grub.
7	Using T.G. Tank Grub and T.G. Screw Serpent as materials, Synchro Summon T.G. Dragon Overnar. Use the Extra Monster Zone for this Synchro Summon.
8	Chain Link 2: T.G. Tank Grub's effect triggers after being used as Synchro Material; summon a T.G. Token onto the field. Chain Link 1: Trigger the effect of T.G. Dragon Overnar; Special Summon as many "T.G." monsters from the GY as possible. In this case, it's T.G. Tank Grub, T.G. Screw Serpent, T.G. Rocket Salamander and T.G. Mighty Striker.
9	Using the T.G. Token and T.G. Screw Serpent as materials, Synchro Summon T.G. Hyper Librarian. As long as this card is face-up on your side of the field, you draw a card for every Synchro Summon you do afterwards.
10	Because of T.G. All Clear, every "T.G" monster you control on the field is treated as a Machine-type monster. With this, activate the second effect of T.G. Rocket Salamander; Special Summon T.G. Screw Serpent back onto the field.
11	Using T.G. Screw Serpent and T.G. Tank Grub as materials, Synchro Summon T.G. Star Guardian. Upon being Synchro Summoned, activate its effect; retrieve T.G. Screw Serpent back from the GY to the hand.
12	Using the second effect of T.G Star Guardian, Special Summon T.G. Screw Serpent from the hand. Then, using it and T.G. Rocket Salamander, Sycnhro Summon a Level 5 non-Tuner Synchro Monster. In this Deck Recipe's case, it's another copy of T.G. Dragon Overnar.
13	Using the two T.G. Dragon Overnar and T.G. Mighty Striker as materials, Synchro Summon T.G. Glaive Blaster. Activate the effect of T.G. Glaive Blaster; banish T.G. Star Guaridan. This triggers the effect of T.G. Close from the GY; immediately Set it from there.
15	With T.G. Star Guardian being banished, trigger the second effect of T.G. Glaive Blaster; target Star Guardian, and Special Summon it back onto the field. Then, using T.G. Star Guardian and T.G. Hyper Librarian as material, Synchro Summon Shooting Star Dragon T.G. EX.

No Field Spell Active
	X		X
-		-	(SET)	-

Boss Monsters

	Baronne de Fleur
	Any Synchro-centric Deck worth its strength in a Duel always rus at least a copy or two of Baronne de Fleur, due to its overall usefulness. A card destruction effect and a omni-negate effect is always useful in any situation.
	T.G. Glaive Blaster
	The newest of the two Level 12 "T.G." Synchro Monsters, T.G. Glaive Blaster immediately targets a Special Summoned Extra Deck monster(s) the opponent controls, and gets rid of it. If a monster is banished face-up while this card is active, this card can Special Summon it to that player's field.
	T.G. Halberd Cannon
	T.G. Halberd Cannon is the original boss monster of the archetype, and for good reason. It can negate a summon once per turn, and has a floating effect that replaces itself with any "T.G." monster in your GY.
	Cosmic Quasar Dragon
	Cosmic Quasar Dragon can be Special Summoned like the other Level 12 Synchro Monsters in this Deck, but it can also be brought out with the help of Crimson Dragon. It can negate monsters based on the number of materials this monster used to be summoned, and can replace itself with any Level 12 Synchro Summon monster that requires the same materials as this card.
	Hot Red Dragon Archfiend King Calamity
	Much like Cosmic Quasar Dragon, Hot Red Dragon Archfiend King Calamity is most likely going to be brought out with the help of Crimson Dragon. When summoned, the opponent can no longer activate cards or effects for the rest of the turn, and the opponent cannot respond to this card's activation.

T.G. Diabellstar Counters: How to Beat

Best Decks to Use Against T.G. Diabellstar

Floowandereeze

Floowandereeze Decks can completely ignore Special Summons, as their playstyle of continuous Normal Summons are a counter of their own against T.G. Once they have their key cards set up, it can be incredilbly hard to win through sheer aggression.

Floowandereeze Deck List & Card Guide

Labrynth

In the current meta, there is no better Control Deck right now than Labrynth, because of their heavy use of Trap Cards and protection of them. They can even Set and activate Trap Cards on your own turn, which will be extremely difficult to deal with.

Labrynth Deck List & Card Guide

Runick

The Runick archetype has received mutliple hits in the banlist over the months, but their versatility to be used in multiple Decks that can make use of them gives them unpredictability. Their Quick-Play Spells will definitely interrupt plays, and can easily Deck out the player.

Runick Deck Lists
Pure Runick	Spright Runick
Ishizu Runick	Naturia Runick

Mannadium

Within the Synchro Summon playstyle, the current meta's top Deck is the Mannadium Deck, due to their consistency, flexibility with different archetypes, and ability to Special Summon extremely powerful monsters in one fell swoop.

Mannadium Deck List & Card Guide

Best Cards to Tech Against T.G. Diabellstar

	Maxx "C"
	Maxx "C" is easily the Deck's strongest counter, because of the nature of Synchro Summon Decks dealing with multiple Special Summons. Once this is active, unless hand traps are avaialble there are only two options: stopping the combo, or forcing to deal with giving the opponent masive card advantage.
	Droll & Lock Bird
	Searching effects are prominent for Synchro-centric Decks, and T.G. Decks are no exception. Droll & Lock Bird will stop all card additions from the Deck to the hand, but remember that it goes both ways. Its effect stops you as well.
	Dark Ruler No More
	Most of the power of a Synchro Deck like T.G. comes from their boss monsters and having multiple of them on the field. However, a single Dark Ruler No More will render them all ineffective. It might stop you from dealing damage for the rest of the turn, but it is a good trade-off from breaking a nigh-unbreakable field.
	Dimensional Barrier
	There is only one non-Synchro Monster in the Extra Deck of this T.G. Deck Recipe. The moment a Trap-centric player finds that out, they can use Dimensional Barrier to prevent you from activating Synchro Monsters' effects, and even stop you from Synchro Summoninig outright until the end of the turn.
	Summon Limit
	T.G.'s usual combos will most definitely require more than 5 monster summons in a single turn. Summon Limit will effectively stop the Deck's plays until they deal with this Continuous Trap Card.

Related Packs to T.G. Diabellstar

Futuristic Creatures	Legacy Pack
Master Pack	Ride Into the Future
Savage Crimson Dragon	The Noble Knights of Crimson Flowers

Yu-Gi-Oh Master Duel Related Guides

Yu-Gi-Oh Master Duel Deck Archetypes

Yu-Gi-Oh Master Duel Decks

Deck Tier List: Best Decks for Season 35

List of All Covered Decks

World Champion Decks

2024 World Champions: Team 7
Horus Tearlaments	Yubel	Fire King Snake-Eyes
Salamangreat	Purrely	Vanquish Soul

Decks Used in Worlds 2024

Decks Used By All Teams in Worlds 2024
snipehunters	CER	Hero's Future
BOTB	MYYGO	Thank Love
CER 2 x FCG	BRAZ IL	Maxx “Yee”
Double Noir	Rogue Ruler

Aggro Decks

List of All Aggro Decks
D/D/D Aggro	Code Talker / Prank Kids	Zoodiac
Blue-Eyes	Virtual World	SPYRAL Control
Toon Kingdom	Red-Eyes	Blue-Eyes
Zoodiac	Prank-Kids	Zoodiac Tri-Brigade
Pure Tri-Brigade	Ancient Gear	Dragonmaid
Tri-Brigade Lyrilusc (Bird Up)	Dinosaur	Raidraptor
HERO	Dragon Link	Despia
Magikey	Adamancipator	Black Luster Soldier
Pendulum Magician	Stardust Dragon	Tenyi Swordsoul
Cyberdark	@Ignister	Cyber Dragon
The Winged Dragon of Ra	Despian Predaplant	Despia Darklord
Odd-Eyes Performapal	Numeron FTK	Six Samurai
ABC	Trickstar Windwitch	Blackwings
Fluffal	Cupid Pitch Turbo	Lunalight
Vampire	Ultra Athletes	Thunder Dragon
Z-ARC Pendulum Magician	Adventurer Rose Dragon Tenyi	Adventurer P.U.N.K.
Suship	Pure D/D/D	Numeron Egyptian Gods
Galaxy Eyes OTK	Borrelend Dragon Link	Vaylantz
Beetrooper	Icejade Ra	Therion ABC
Libromancer	Mathmech	Spright Evil☆Twin
Spright Tri-Brigade	Ishizu Chaos	Slifer Arcana Knights
Gaia OTK	Vernusylph	Ancient Warriors
Ghoti	Springans	8-Axis Gizmek Orochi
Danger! Dark World	Mikanko	Scareclaw Kashtira
Zombie World P.U.N.K.	Hungry Burger Nouvelles	Obelisk the Tormentor
Mannadium	Gate Guardian	Gold Pride P.U.N.K.
Superheavy Samurai	Nemleria	Dragon Rulers
Snake-Eye	T.G. Diabellstar	Skull Servant
Kaiju	Resonators	Earthbound
Malefic	Kozmo	Armored Xyz Shark
Unchained	Battlin' Boxer	Chimera Illusion
Fire King Snake-Eyes	Vaalmonica	Memento
Horus Tearlaments	Centur-Ion	Dragon Master Magia
Ice Barrier	Infernoid	Lightsworn
Ogdoadic Ragnaraika	Genex	Tenpai Dragon
Goblin Biker	Infernoble	Armed Dragon
Flame Swordsman	Melodious

Control Decks

List of All Control Decks
Invoked Shaddoll	Eldlich Control	Drytron Fairy
True Draco	Dark Magician	Traptrix
Phantom Knights	Madolche	Relinquished
P.U.N.K.	DPE Scythe	Evil★Twin
Paleozoic Frog	Salamangreat	Gravekeepers
Monarch	Tellarknight	Agent
Exosisters	Darklord	Plunder Patrol
Rikka	Floowandereeze	Adventurer Phantom Knights
Dinomoprhia	Tri-Brigade Gladiator Beast	Adventurer Witchcrafter
Dark Magician Gravekeeper	Branded Tri-Brigade	Branded Despia
Zombie Vampire	Blue-Eyes Jet Dragon	Spellbook
Branded Cyber Dragon	Branded Zombies	Pure Scareclaw
Dinomorphia	Runick	Labrynth
Harpies	Buster Blader	Umi Control
Endymion	Nekroz	Spright
Spright Runick	Ishizu Runick	Branded Ishizu
Crystal Beasts	Orcust	Altergeist
Witchcrafter	Subterror Krawler	Mayakashi
Ishizu Tearlaments	Evilswarm	Melffy Spright
Bystial Branded	Dogmatika Bystial	Naturia Runick
Generaiders	Kashtira	Purrely
Ninja	Rescue-ACE	Gishki Spright
Prediction Princess	Vanquish Soul	Jinzo
Egyptian God	Ojama Control	Aromage
Ghostrick	Kuriboh	Anti-Meta Stun
Runick Spright Fur Hire	Horus Control	Toy Box Dark Magician
Yubel	Voiceless Voice	Rikka Ragnraika
Ritual Beast	Shining Sarcophagus

Burn Decks

List of All Burn Decks
Red-Eyes Burn	Timelord Burn	Chain Burn
D.D. Dynamite	Igknight OTK	Cubic
Dinosaur Bishbaalkin FTK	Volcanic Snake-Eyes	Transaction Rollback Burn

Alt-Win Decks

List of All Alternate Win Decks
Crooked Cook Exodia	Flower Cardian Exodia	Treasure Panda Exodia
Suicide	Defense OTK

All Budget Decks

List of All Budget Deck Guides
Budget Shark Xyz	Budget Eldlich	Budget Hippo Turbo
Budget Despia	Budget F.A. Metalfoes	Budget Blue-Eyes White Dragon
Budget Chain Burn	Budget Majespecter	Budget Yosenju
Budget Flower Cardian	Budget True Draco	Budget Amorphage
Budget Ishizu Tearlaments

Best Cards for Decks

Lists of Best Cards for Deck Building
Best Staple Cards		Best Searchers		Best Hand Traps
Best Board Wipes		Best Negates		Best Fusion Monsters
Best Synchro Monsters		Best Xyz Monsters		Best Link Monsters
Best Structure Decks			Best Decks to Go 1st or 2nd