Mysterious Guard is a Common Flip Effect Monster from the 2020 Speed Duel: Battle City Box set, identified by card number SBCB-EN150.
Mysterious Guard
2020 • Yu-Gi-Oh! • Speed Duel: Battle City Box
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Market Price Guide
| Condition | Value | Comps | Source | Price Date |
|---|---|---|---|---|
| Raw / Ungraded | $1.08 | Unknown | Guide Estimate Based on TCGplayer Market (reference) | Source Observation Date Unavailable |
Price HistoryOver the last 30 days, stored prices ranged from $1.08 to $1.08 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
$1.08- 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 $1.08 to $1.08 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
Mysterious Guard enters the Speed Duel format as a Level 3 EARTH Spellcaster monster, featured in the 2020 Speed Duel: Battle City Box set. This card, cataloged as SBCB-EN150, serves as a foundational element for players building decks focused on rapid board presence and strategic flipping mechanics. As a Common rarity card, it is designed to be accessible to all collectors, making it an essential piece for completing the base set. The card’s Flip Effect Monster type introduces a unique gameplay dynamic, requiring players to manage the risk and reward of turning face-down monsters face-up. This mechanic is central to many Speed Duel strategies, where controlling the field through sudden shifts in board state can turn the tide of battle. Collectors interested in the tactical depth of Yu-Gi-Oh! Speed Duel will appreciate Mysterious Guard for its straightforward yet impactful role in various deck archetypes. Whether you are assembling a themed collection around Spellcaster monsters or focusing on the complete Speed Duel: Battle City Box release, Mysterious Guard provides a reliable and recognizable addition. Its EARTH attribute and Spellcaster type allow for flexible integration into broader Yu-Gi-Oh! Trading card game strategies, appealing to both new and veteran players. Collecting this card allows enthusiasts to explore the nuances of the Speed Duel variant, which emphasizes faster gameplay and distinct board layouts. The 2020 Battle City Box release marked a significant moment for the community, and owning cards from this period helps preserve the history of the format. For those who value the strategic diversity of Flip Effect Monsters, Mysterious Guard stands out as a key component in understanding the evolution of Speed Duel gameplay.
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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
Mysterious Guard
Game
Yu-Gi-Oh!
TCG Attributes
Rarity, print treatment, and game-specific stats for this card.
Common
Card Stock
English
Earth
Spellcaster
3
800 / 1200
Card Text
Abilities, attacks, oracle text, and flavor text printed on the card.
FLIP: Target 1 face-up monster on the field, and if you control a face-up Warrior-Type monster, you can target 1 additional face-up monster on the field; return the first target to the top of the Deck, then return the additional target (if any) to the hand if you still control a face-up Warrior-Type monster.
