NEXUS

Executive Summary

While the "Archfiend" name encompasses a vast history of cards, its modern competitive identity is defined exclusively by the Red Dragon Archfiend (RDA) Synchro strategy. This explosive combo deck leverages the highly efficient "Resonator" engine to rapidly climb into powerful Level 8, 9, and 12 DARK Dragon Synchro monsters. Through a redundant and powerful search chain, the deck transforms a single starter card into a formidable endboard featuring multiple negations, inherent protection, and overwhelming offensive pressure.

Foundational Mechanics

Resonator Engine

The heart of the deck, "Resonator" Tuner monsters facilitate a rapid Synchro ladder. Starters like Soul Resonator search extenders, while cards like Crimson Resonator flood the field with Tuners to enable high-level Synchro Summons.

Synchro Climbing

The deck's core combo involves "climbing" through Synchro monsters. An intermediary like Red Rising Dragon revives Tuners, which are then used with other monsters to summon progressively stronger bosses, culminating in game-winning threats.

Core Combo: The 1-Card Soul Resonator Line

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This walkthrough demonstrates how a single Soul Resonator can generate a powerful endboard with multiple interruptions.

Soul Resonator
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1

Starter and Search

Normal Summon Soul Resonator to search for Bone Archfiend. This initiates the primary combo sequence.

Red Rising Dragon
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2

GY Setup & Synchro Bridge

Use Bone Archfiend to send Crimson Resonator to the GY, then Synchro Summon Red Rising Dragon, which revives the Crimson Resonator.

Hot Red Dragon Archfiend Abyss
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3

Final Boss Monsters

Crimson Resonator summons two more Tuners from the deck, allowing you to Synchro climb into powerful monsters like Hot Red Dragon Archfiend Abyss and Red Supernova Dragon.

Optimal Endboard

Red Supernova Dragon
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  • Hot Red Dragon Archfiend Abyss: A Level 9 Synchro that provides a versatile Quick Effect to negate a face-up card.
  • Red Supernova Dragon: A massive Level 12 Synchro that is indestructible by card effects and can banish itself and the opponent's entire field as a Quick Effect.
  • Crimson Gaia: A Continuous Spell that provides recursion and searches for follow-up plays.

Competitive Analysis

Strengths

  • Explosive Combos: Capable of producing a powerful board from a single card.
  • High Consistency: Multiple searchers and redundant combo lines make the strategy reliable.
  • Resilient Bosses: Endboard monsters have built-in protection and powerful disruption effects.

Weaknesses

  • Vulnerable to Hand Traps: Key choke points like Red Rising Dragon can be easily disrupted.
  • Susceptible to Floodgates: Cards that prevent Special Summoning or GY effects can shut down the entire strategy.
  • Relies on DARK monsters: Can be countered by attribute-specific floodgates.

Key Synergies & Support

  • Bystial Engine: DARK Dragon monsters that provide extra bodies and GY disruption, fitting perfectly with the deck's attributes.
  • Legacy Archfiends: Cards like Archfiend Heiress can be used as niche searchers.
  • Generic Synchro Support: Cards that help facilitate Synchro summons are always valuable.

The Archfiend's Armory

A detailed overview of the key monsters and spells that fuel this infernal strategy.

Soul Resonator

The primary 1-card starter that searches any Level 4 or lower Fiend monster.

Bone Archfiend

A key extender that Special Summons itself and sets up the Graveyard with a Fiend Tuner.

Crimson Resonator

The main combo extender that summons two additional Resonators from the deck.

Red Rising Dragon

The crucial Level 6 Synchro bridge that revives a Resonator from the GY to start the combo.

Red Supernova Dragon

The ultimate boss monster with built-in protection and a devastating field-wiping Quick Effect.

Crimson Gaia

A powerful Continuous Spell for searching, recursion, and follow-up plays.

Banlist Impact

Fully Unrestricted

As of the current TCG format, the Resonator archetype is entirely unrestricted, allowing it to operate at full capacity.

Maximum Consistency

Play any card at your preferred ratio without restrictions

Full Strength Plays

Access to all archetype synergies without limitations

Strategic Freedom

No banlist constraints holding back your strategy

Banlist Status Summary

+ analyzed • 0 restrictions found • All cards legal at 3 copies

Find Resonator Decks

Explore deck lists from the YGOProDeck community featuring Resonator. Find inspiration for your next build!