Therion gameplay guide

By Ljkad Published Apr 2, 2026 Updated May 4, 2026

Welcome to this detailed guide on Therion – the deck that is currently dominating and reshaping the entire Duel Links meta with the power of a true "Tier 0" force .
Just kidding, these guys were Tier 0 and didn't get nerfed at all during the KC Cup (Kaiju Cup), but they still dropped to Tier 1 because people figured out how to counter them, constantly feeding them "Eggs," "Lava Golems," and "kaiju," along with Floodgate, lock, stun... and that damn " Power of the Creation " skill.

Even so, the fact that the Duel Links format once ranked it at Tier 0 is already considered "Trash." Its power is ridiculously low, forcing almost all players in the current format to use Lava Golem or "Egg - Sphere Mode" to have any hope of breaking through defenses. If you're looking for a deck with absolute power to crush any opponent on your ranked climb, Therion is definitely a name you must try!

Sections covered in this guide:

1/ Skill

2/ Monsters in the Main Deck

3/ Spell/Trap

4/ Monsters in the Extra Deck

5/ Support leaves

6/ Gameplay & Combos

Skill

Therion Battle Royale (Skill Card) (100%)

This skill is the key to Therion's near-perfect stability, providing incredibly powerful search and Graveyard capabilities that rarely brick your deck.

Effect 1 (Search & Provide Engine): By revealing 1 Therion monster in your hand, you can search for ANY Therion card from your deck to your hand (including powerful Spell/Trap cards like Therion Cross ). Simultaneously, the skill automatically adds the Endless Engine Argyro System card from outside your deck directly to your hand. This is a crucial piece of the puzzle ensuring you always have resources available to send to the Graveyard.
Effect 2: If your opponent is controlling ANY card on the field, you will receive a massive amount of resources completely free: Instantly add 1 Therion monster from your deck to your hand and send 3 Therion cards directly from your deck to the Graveyard (prepare resources to equip them).

The "going first but going last" trick on Turn 1: There's an extremely unconventional trick: use Vaylantz Field Spells (like Shinra Bansho ). When you activate this Environment Spell, it automatically places the remaining Vaylantz Environment Spell ( Koenig Wissen ) to your opponent's field. This immediately satisfies the "opponent has cards" condition of the Skill, allowing you to unleash a massive amount of resources to the Graveyard and draw a card on Turn 1! Or you can summon Galaxy-Eyes Tachyon Primal to your opponent's field.

Monsters in the Main Deck

Therion "King" Regulus (x2)

As the name suggests, this is our "King" and the most powerful interrupt tool in the deck. Regulus possesses the Omni Negate ability by sending 1 Therion monster (including itself, whether in monster or equipped form) from the field to the Graveyard.

It plays a crucial role in protecting your combo chain from hand traps when you go first, while also interrupting any gameplay attempts by your opponent. (This is also a Tier 8 monster that allows you to perform an Xyz Summon).

Therion "Lily" Borea (x2)

Borea is an indispensable combo starter. He can send any card from his hand or field to the Graveyard to search for a Spell or Trap Therion card (usually Therion Cross or a Field card) from the deck to his hand.

Along with Alasia, Borea set up a 1-card combo that resulted in a dominant first-turn board. (This is also a Tier 8 monster).

Therion "Duke" Yul (x2)

This is the deck's strongest defensive shield. As long as any cards on the field are in equipment form, Yul will protect all of your Therion monsters from being destroyed by extreme hard damage .

Therion "Empress" Alasia (x3)

This is an excellent combo extender that helps you quickly deploy more monsters onto the field.

While Alasia is on the field, you can activate its effect: discard 1 card from your hand to Special Summon the Therion monster currently equipped with that card directly to the field. Alasia is often used to pull another Therion of the same level into the Monster zone, thereby providing enough 2 8-star Bodies to perform Xyz Summons like Draglubion or Hope Harbinger .

Therion "Reaper" Fum (x1)

A relatively annoying interruption. While on the field, Fum provides a Quick Effect that allows you to bounce one of your Therion-equipped cards (or even Environment cards) back to your hand, in exchange for bounces one of your opponent's cards back to their hand. This effect is excellent for disrupting the pace of your opponent's board play.

Therion "Bull" Ain (x1)

A simple yet effective board-clearing tool. During her turn, Ain can destroy one of your cards in exchange for destroying one card on her opponent's field, clearing Vaylantz's Field Card or Galaxy-Eyes Tachyon Primal that she placed on the opponent's field to activate the second effect of her Skill. However, both Fum and Ain are Level 7, with no XYZ effects, so only x1 applies.

Therion Irregular (x1)

Boss Monster Irregular is designed to clear the board and finish the game. Irregular can Special Summon up to three Therion monsters from the Graveyard, stacking a massive attack power and gaining ALL the effects of those monsters. Notably, you can discard the Endless Engine card to unleash a broom that sweeps the entire opponent's board (destroying all cards the opponent is controlling).

Spell/Trap

Therion Cross (x1)

This is an extremely powerful Trap card and a crucial anchor in the deck. As long as you control a Therion monster on the field, you can activate it to negate or banish an opponent's monster. However, the ultimate power of this card lies in the fact that if you have a Spell card... The Endless Engine Argyro System is located in the Graveyard, where you will be allowed to perform BOTH effects simultaneously (both disabling and banishing).

Endless Engine Argyro System (x0)

This is a core engine card that is always guaranteed to be available in your hand at the start of the game, so it doesn't need to be in your deck.

The primary purpose of this spell is to quickly send it to the Graveyard (via discarding or sending from the deck) to maximize the power of Therion Cross . Additionally, while in the Graveyard, it can banish itself to reclaim resources for your hand, or be used by a Therion Irregular monster as a discard cost to activate a "clean sweep" effect that wipes out the entire opponent's board.

Therion Discolosseum (x1)

The distinctive Field card provides excellent stability to the entire strategy.

Once activated, it acts as a search tool, allowing you to directly draw a Therion monster (such as Borea, Yul, or Regulus) from your deck to your hand to complete combo chains. Additionally, this card helps maintain the pace of the game by retrieving a Therion monster from the Graveyard to your hand as a resource for the next turn.

Therion Charge (x1)

The "Trade-In" feature is specifically for Therion. It acts as a tool to enhance card drawing capabilities when needed. By sending resources, it not only helps you draw more cards but also proactively sends Therion monsters to the Graveyard to prepare them as "Equip" for Special Summons.

Vaylantz World - Shinra Bansho and Vaylantz World - Konig Wissen (x0-2)

This is an incredibly artistic "tech card" that seems tailor-made for Therion. When you activate a card (e.g., Shinra Bansho), it automatically places the remaining Environment Spell card directly into your opponent's Environment zone. This immediately fulfills the "opponent has cards on the field" condition of Therion's ability, allowing you to use resources for free on Turn 1. Additionally, Shinra Bansho 's effect allows you to directly summon a monster currently in the Spell/Trap zone (working on an item) to the field. Conversely, Koenig Wissen (currently on the opponent's field) can be activated to push your opponent's monster into the Spell/Trap zone, acting as a very annoying remover.

Monsters in the Extra Deck

Divine Golden Shadow Dragon Dragluxion (x1)

This Rank 8 Xyz monster acts as an indispensable "transfer station" in the Turn 1 combo chain. By using 2 Rank 8 monsters, Dragl on the field will help you find Tachyon Primal. or Trap Tachyon Transmigration . Immediately afterward, it can transform itself directly to summon Hope Harbinger or Tachyon Dragon.

Number 38: Hope Harbinger Dragon Titanic Galaxy (x1)

This is one of the most powerful spell negates in the game. Often easily summoned via Dragl, this monster not only negates your opponent's main spells but also "drains" them into its Xyz material, preventing your opponent from recycling them from the Graveyard.

In addition, it has the ability to force opponents to redirect their attacks towards itself, helping to shield the weaker Therion combo fragments.

Number 90: Galaxy-Eyes Photon Lord (x1)

The second control piece in the first turn of the defense, providing the ability to negate monster effects (Monster negate). You will typically Xyz Summon this monster by combining it with Tachyon Primal. Along with a Tier 8 Therion monster (such as Regulus or Borea), the simultaneous appearance of Photon Lord and Hope Harbinger will effectively shut down almost all of the opponent's counterattack routes.

Number 107: Galaxy-Eyes Tachyon Dragon (x1)

The optimal Xyz choice is when you have to go second (Turn 2). By summoning Tachyon Dragon, you will immediately fulfill the condition to directly activate the Counter Trap Tachyon Transmigration card from your hand. This provides a layer of absolute protection when you are trying to disrupt your opponent's board.

Galaxy-Eyes Cipher Blade Dragon and Galaxy-Eyes Full Armor Photon Dragon (x0-1)

This destructive duo is perfect for clearing the board when going second. Their familiar playstyle is a direct Rank-Up overpowering from Photon Lord. Upgrade to Full Armor (dismantle materials to destroy one face-up card), then continue Rank-Up to Cipher Blade Dragon. (Destroy one more random card). This Rank-up sequence clears the obstacles in the way, allowing you to deal burst damage and finish the game.

Teardrop the Rikka Queen (x1)

A disruptive and extremely annoying Rank 8 Xyz monster. As long as you use Therion "Lily" Borea (a Plant-type monster) as Xyz material to summon this card, Teardrop will possess a Quick Effect that allows you to directly Tribute an opponent's monster. Tribute removal bypasses most defenses against destruction.

Dingirsu the Orcust of the Evening Star (x1)

Another versatile Rank 8 Xyz option for later play situations, Dingirsu offers the ability to discard your opponent's cards by sending them directly to the Graveyard (without destroying or targeting), incredibly useful for dealing with monsters that have strong crowd control resistance.

Underworld Goddess of the Closed World (x0-1)

By strategically placing Therion monsters across the field and using your opponent's main monster as Link material, you can easily eliminate "invincible walls" unaffected by card effects to win the game.

Support leaves

The Winged Dragon of Ra - Sphere Mode and Lava Golem (x3)

These are two essential board-clearing "gods" in the meta, not just for countering Therion. When facing a Turn 1 board with 5 disruptions (including Hope Harbinger spell-draining, Photon Lord monster blocking, and Regulus Omni-negate, Trap Therion Cross + Tachyon), conventional board-breaking tools like Dark Hole is completely useless. The best and only solution is to use the enemy's own monster as a sacrifice (Tribute).

Mask of Restrict (x0-1)

This tech card is crucial for protecting your lead. Knowing that your opponent will also be using Lava Golem or Sphere Mode to try and disrupt the board, you can utilize this trap card.

When revealed, Mask of Restrict prohibits both players from sacrificing cards in any form. This makes your 5-negate board virtually invulnerable to the meta's most ruthless board-clearing tools.

Common hand traps

While you can certainly incorporate traditional trap hand cards into your deck to disrupt your opponent on Turn 1, the meta's focus on board setup significantly diminishes the impact of a single trap hand.

Players often prioritize allocating slots to Lava Golem or cards that increase combo stability, as Lava Golem 's ability to "turn the tables" offers significantly more value than throwing an Effect Veiler which is easily countered by opponents thanks to Regulus 's protection . However, if you want to play it safe, Effect Veiler or hand traps against Graveyard cards are still reasonable additions depending on the matchup.

Gameplay & Combos

Therion is a flawless Control & Suppression machine , ONCE a Tier 0 due to its all-around offensive and defensive capabilities in both turns.

When going first (Turn 1): Your ultimate goal is to set up an "impenetrable" board with a maximum of 5 interruptions. The deck utilizes Skills to search for resources, constantly replenishing the Graveyard, thereby Special Summoning Therions (such as Regulus for Omni-negate, Therion Cross trap ) combined with the infamous Tier 8 Xyz cards of Galaxy/Tachyon ( Hope Harbinger , Photon Lord ).
When going second (Turn 2): Thanks to its Auto Skill providing a huge advantage when your opponent has cards on the field, Therion easily overcomes defenses. You'll use Duke Yul as an item to buff all Therion monsters with invincibility, leverage the destructive power of the Xyz chain Full Armor -> Cipher Blade , and finish off the "final boss" Therion Irregular with its board-clearing effect.
Fatal weakness: With a board spread full of powerful monsters, Therion is extremely vulnerable to opponent's area-of-effect sacrifice cards like Lava Golem or Ra's Sphere Mode . Also, taking Floodgates that prevent Hand effects is fatal.