Yu-Gi-Oh! Duel Links: Cosmic Blazar Dragon Turn 1 Combo Guide

To summon Cosmic Blazar Dragon on turn one in Yu-Gi-Oh! Duel Links, run Yusei Fudo with the Skill "A Bond Illuminates the Future" alongside a starter hand containing Junk Synchron and Junk Converter (or Tuning). The Skill's lack of a turn-two restriction lets you seed the Graveyard immediately on turn one, enabling a full Synchro climb through Junk Speeder to field three Synchro monsters for an Accel Synchro Summon before your opponent takes a turn.

How the Skill Enables the Turn-One Play

The Skill "A Bond Illuminates the Future" automatically adds Cosmic Blazar Dragon and Shooting Star Dragon to your Extra Deck at the start of the Duel. During your opening Main Phase, revealing a Tuner or "Stardust" monster allows you to send a Tuner or "Junk" monster directly from your Main Deck to the Graveyard while placing a copy of Formula Synchron into your Graveyard from outside the Duel.

Because this Graveyard setup occurs on Turn 1 without summoning costs, it supplies the necessary Accel Synchro material in the Graveyard and primes your follow-up revival effects immediately.

Core Deck Ratios

Keep the Main Deck at exactly 20 cards to maximize the probability of drawing Junk Synchron, Junk Converter, or Tuning in your opening hand.

Discarding Junk Converter along with any Tuner searches Junk Synchron, assembling the necessary Graveyard and field pieces in a single sequence.

Step-by-Step Cosmic Blazar Dragon Combo

Execute the following steps during Turn 1 to build the required board within the constraints of the three Monster Zones:

1. Activate the Skill: Reveal a Tuner monster in hand. Send Junk Converter from your Main Deck to the Graveyard and place Formula Synchron into your Graveyard from outside the Duel.
2. Normal Summon Starter: Normal Summon Junk Synchron. Activate its on-summon effect targeting Junk Converter in your Graveyard, Special Summoning Converter in Defense Position.
3. Synchro Summon Junk Speeder: Tune Level 3 Junk Synchron with Level 2 Junk Converter to Synchro Summon Level 5 Junk Speeder.
4. Resolve the Chain: Order the chain with Junk Speeder as Chain Link 1 and Junk Converter as Chain Link 2. Converter resolves first, Special Summoning a Tuner from your Graveyard. Speeder resolves second, Special Summoning different-Level Synchron Tuners (such as Jet Synchron) directly from your Deck.
5. Ladder into Materials: Use your field Tuners and non-Tuners to Synchro Summon your intermediate monsters, establishing Stardust Dragon alongside your revived Formula Synchron and an additional non-Tuner Synchro.
6. Accel Synchro Summon: Send your one Tuner Synchro Monster (Formula Synchron) and your two non-Tuner Synchro Monsters to the Graveyard to Accel Synchro Summon Cosmic Blazar Dragon.

Cosmic Blazar Dragon Interruption Modes

Cosmic Blazar Dragon banishes itself as a cost until the End Phase to trigger one of three defensive responses:

• Negate Card or Effect Activation: Negates the activation of an opposing Spell, Trap, or monster effect and destroys that card. Prioritize using this against core searchers or board-clearing Spells.
• Negate a Summon: Negates an inherent Normal Summon or Special Summon (including Synchro, Contact Fusion, Link, or Pendulum Summons) and destroys the monster before it hits the field.
• Negate an Attack: Negates an attack and immediately ends the opponent's Battle Phase.

Because banishing Blazar is a cost, quick-play targeting cards such as Book of Moon cannot interrupt the tag-out. However, banishing Blazar leaves your field open until the End Phase. Reserve the tag-out for critical opposing starters rather than low-impact bait cards.

Counterplay and Choke Points

• Junk Speeder Negation: The combo's primary failure point is Junk Speeder's on-summon trigger. If an opponent negates Speeder with Effect Veiler or flips it face-down with Book of Moon, you cannot field the required material to summon Cosmic Blazar Dragon.
• Tribute Removal: Monsters that tribute opposing cards for their summon (such as Lava Golem or Kaiju-style monsters) remove Blazar through game mechanics without activating an effect, bypassing its negation entirely.
• Resource Depletion: Committing your hand to the turn-one combo expends most of your Extra Deck bridges. If your initial climb is disrupted, preserve any defensive hand traps to survive into Turn 3 rather than overcommitting remaining resources into incomplete boards.