Nightmare's Steelcage is a Normal Spell Card from the 2006 Structure Deck: Spellcaster's Judgment. This catalog entry details the card's identity, set context, and gameplay mechanics for TCG collectors.
Nightmare's Steelcage
2006 • Yu-Gi-Oh! • Structure Deck: Spellcaster's Judgment
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Market Price Guide
| Condition | Value | Comps | Source | Price Date |
|---|---|---|---|---|
| Raw / Ungraded | $1.36 | Unknown | Guide Estimate Based on TCGplayer Market (reference) | Source Observation Date Unavailable |
Price HistoryOver the last 30 days, stored prices ranged from $1.36 to $1.36 across 2 capture days. Change between Sep 4, 2026 and Sep 10, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts. | ||||
Raw / Ungraded
$1.36- Comps
- Unknown
- Source
Guide Estimate
Based on TCGplayer Market (reference)- Price Date
- Source Observation Date Unavailable
Price HistoryOver the last 30 days, stored prices ranged from $1.36 to $1.36 across 2 capture days. Change between Sep 4, 2026 and Sep 10, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
Price History
Description
Nightmare's Steelcage (SD6-EN031) is a Normal Spell Card from the Yu-Gi-Oh! Trading card game, originally released as part of the Structure Deck: Spellcaster's Judgment in 2006. This product represents a foundational piece of the game's early history, specifically designed to support the Spellcaster archetype within the competitive landscape of that era. As a Normal Spell, Nightmare's Steelcage operates with straightforward mechanics, providing players with a reliable effect to manipulate the board state during gameplay. While the card itself does not possess complex rarity treatments or foil variations, its significance lies in its role within the Spellcaster's Judgment structure deck. Collectors of Yu-Gi-Oh! Vintage cards often seek out complete structure decks or individual cards to understand the evolution of the game's strategies and card design from the mid-2000s. The card's catalog number, SD6-EN031, serves as a unique identifier for collectors and traders referencing the product. Understanding the specific attributes of cards like Nightmare's Steelcage is crucial for those building comprehensive collections of Yu-Gi-Oh! History. Whether you are a veteran player looking to complete a set of structure deck inclusions or a new collector learning the ropes of the TCG, this card offers a glimpse into the strategic depth of the Spellcaster archetype. By focusing on the factual identity of the card, collectors can make informed decisions about their acquisitions without relying on speculative market trends or unverified condition reports.
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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.
Featured Subject
The subject, team, league, and sport context tied to this card.
Featured
Nightmare's Steelcage
Game
Yu-Gi-Oh!
TCG Attributes
Rarity, print treatment, and game-specific stats for this card.
Common
Card Stock
English
Normal
Card Text
Abilities, attacks, oracle text, and flavor text printed on the card.
This card remains on the field for 2 of your opponent's turns. While this card is face-up on the field, no monsters can attack.










