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Reference artwork · details may differ from this copy
About This Card

Collect the 2015 Yu-Gi-Oh! Synchron Extreme Structure Deck card Solemn Warning (SDSE-EN039). This common rarity is a staple for TCG enthusiasts completing the SDSE series.

Solemn Warning

2015 • Yu-Gi-Oh! • Synchron Extreme Structure Deck

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Market Value
Raw/Ungraded Market: $0.30
Stale · as of 10/22/2026
Based on Aggregated Price GuideCheck Price Guide

Market & Price History

Prices Captured Oct 22, 2026
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  • $0.65As of 10/22/2026
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  • $45.00As of 10/22/2026
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  • $34.81As of 10/22/2026
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  • $21.00As of 10/22/2026
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Below grade 10 the guide publishes one estimate across all graders, so these rows are not PSA, BGS, CGC or SGC prices, and a low slabbed grade can sit below a clean raw copy. Grade 10 is estimated per grader.

30-day Price History

Raw / Ungraded

PriceCharting Price Guide · Guide Estimate evidence · captured Oct 22, 2026

History is building. At least two days of matching observations are needed to show a trend.

Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.
Product Overview

Description

The Yu-Gi-Oh! Synchron Extreme Structure Deck, released in 2015, introduced a focused strategy centered on the Synchron archetype. Within this release, the card Solemn Warning (SDSE-EN039) serves as a key component for players looking to build the included deck. As a Common rarity card, it is a staple in the Yu-Gi-Oh! Trading Card Game, providing essential gameplay utility that complements the deck's core mechanics. For collectors, this card represents a tangible piece of TCG history from the mid-2010s. The Synchron Extreme Structure Deck was designed to teach players how to utilize specific summoning conditions, making cards like Solemn Warning integral to understanding the era's competitive landscape. While primarily a gameplay staple, its inclusion in this structure deck makes it a notable item for those cataloging their Yu-Gi-Oh! collection. Collectors often seek out complete sets of structure decks to preserve the design and narrative context of that year's releases. Adding SDSE-EN039 to your inventory ensures you have a complete representation of this 2015 release. Whether you are a player revisiting older formats or a collector documenting Yu-Gi-Oh! history, this card offers a direct connection to the Synchron Extreme era.

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Product Specs

Card Details

The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.

Catalog Profile

The core identity of the card within the set.

Year

2015

Series

Synchron Extreme Structure Deck

Card Number

#SDSE-EN039

Featured Subject

The subject, team, league, and sport context tied to this card.

Game

Yu-Gi-Oh!

TCG Attributes

Rarity, print treatment, and game-specific stats for this card.

Rarity

Common

Material

Card Stock

Language

English

Monster type

Counter

Archetype

Solemn

Card Text

Abilities, attacks, oracle text, and flavor text printed on the card.

When a monster(s) would be Summoned, OR when a Spell/Trap Card, or monster effect, is activated that includes an effect that Special Summons a monster(s): Pay 2000 LP; negate the Summon or activation, and if you do, destroy it.

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FAQ

Frequently Asked Questions

What set is Solemn Warning SDSE-EN039 from?

Solemn Warning SDSE-EN039 is from the Synchron Extreme Structure Deck, released by Konami in 2015. It is part of the SDSE series, which focuses on the Synchron archetype.

Is Solemn Warning a rare card in Yu-Gi-Oh?

In the Synchron Extreme Structure Deck, Solemn Warning is printed as a Common rarity. While common in this set, the card itself is well-known in the broader Yu-Gi-Oh! TCG for its powerful trap card effects.

What is the card number for Solemn Warning in this deck?

The specific card number for Solemn Warning in the Synchron Extreme Structure Deck is SDSE-EN039. This identifier helps collectors and players locate the card within the set's catalog.

Cards Named Solemn Warning

Explore cards with this name across sets and editions. Check each card’s details before choosing a version.