Mirror of Oaths

Mirror of Oaths — Power Evaluation

Final Score: 54 ± 5 · Confidence: Medium

• Intrinsic: 56 · Deck: 53 · Meta: provisional
• Primary role: Board breaker / Going-second

Why it scores here

Mirror of Oaths scores as a situational removal trap with defensive potential against Main Deck Special Summon-heavy matchups. The card's strength lies in destroying opponent threats while generating a card draw; however, this is conditional on a specific summon type, which significantly narrows application. Its clean deckbuilding profile and presence across 7 distinct archetypes demonstrate solid accessibility, but the lack of combo evidence and the narrow trigger condition restrict its overall power ceiling to defensive utility.

Axis scores

Calculation

Weight profile: Board breaker / Going-second primary role. Intrinsic ≈ 56, Deck ≈ 53, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

• Hard removal against opponent's Main Deck Special Summons
• Card draw effect provides conditional resource recovery
• Clean deckbuilding with no garnet or brick risk
• Splashable across control and trap-heavy archetypes

Weaknesses

• Conditional trigger limits activation frequency to Main Deck summons only
• No offensive combo value or board extension capability
• Vulnerable to spell/trap removal before activation
• Inactive against Extra Deck-centric strategies

Counters / choke points

• Spell/Trap destruction before opponent's Special Summon nullifies the effect
• Opponent avoidance or low reliance on Main Deck Special Summons reduces trigger frequency
• Early game draw prevents setting trap in opening turns

Best use

Defensive removal / Going-second board breaker. Decks: Eldlich, Blackwings, Control, Trap-heavy. Suggested copies: 2.

Evidence & gaps

• Verified: Card text triggers when opponent Special Summons monster(s) from Main Deck, destroys them, and draws 1 card; Present in 12 decks across 7 distinct archetypes (Eldlich, Blackwings, Vampires, Hole, P.U.N.K., Horus, Generic); Runs 2 copies in 75% of sampled decks (9 of 12); Trap cards cannot be used as material unless specified in card text
• Observed: Co-appears with Bottomless Trap Hole 66.7% of the time (8/12 decks); Co-appears with Ash Blossom & Joyous Spring 66.7% of the time (8/12 decks); Runs primarily in maindeck (12/12 decks) with zero side-deck inclusions
• Inferred: Reactive trap nature provides no combo conversion or board extension potential; Narrow trigger condition (Main Deck Special Summons only) limits effect flexibility versus broader removal effects; Conditional card draw (on successful destruction) prevents reliable resource advantage; Splashable into diverse control and trap strategies due to clean deck-building cost
• Data gaps: no combos supplied — combo conversion is text-only inference no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion percentage inferred from deck sample only only 12 decks sampled; broader inclusion data would clarify meta relevance versus niche tech status