Number 47: Nightmare Shark
WATER

Number 47: Nightmare Shark

  • ATK:
  • 2000

  • DEF:
  • 2000

  • View:
  • 4414




2 Level 3 monsters When this card is Special Summoned: You can attach 1 Level 3 WATER monster from your hand or your side of the field to this card as an Xyz Material. Once per turn: You can detach 1 Xyz Material from this card, then target 1 WATER monster you control; this turn, that monster can attack your opponent directly, also other monsters cannot attack.




 
 
AI Power Analysis
Material bodyConfidence: MediumEvaluated Oct 7, 2026
55± 4/ 100
Power Score
Intrinsic 57
Deck 52

Number 47: Nightmare Shark — Power Evaluation

Final Score: 55 ± 4 · Confidence: Medium

  • Intrinsic: 57 · Deck: 52 · Meta: provisional
  • Primary role: Material body · Secondary: Extender, Utility

Why it scores here

Number 47 is a generic Rank 3 XYZ that provides a clean 2000 ATK/DEF body and an optional self-load effect for modest material resilience. Its direct-attack grant and one-turn lock on other monsters are situational effects that require an existing WATER monster and consume Xyz materials without generating advantage. The card's broad splashability across 64 archetypes (particularly strong in Shark at 68.75% inclusion) confirms accessibility for decks with Level 3 monsters, but the lack of combo evidence and limited disruptive power prevent a higher score. Its value is primarily as an extra deck slot filler and material body, not as a core engine or board breaker.

Axis scores

Axis Score Evidence
Accessibility 60 Decks with Level 3 monsters can reliably summon this Rank 3 XYZ from two specific-level materials, though it requires no built-in searcher and depends entirely on deck composition (verified: 400 decks across 64 archetypes run it as main deck staple).
Combo & Conversion 25 The card does not start or extend combo lines; it consumes two Level 3 monsters to summon and then spends Xyz materials for situational effects rather than building advantage or disruption (verified: zero combos supplied, text-only inference).
Resource Economy 50 The optional self-load effect roughly balances the summon cost; the once-per-turn effect burns materials without generating card advantage or refuel (verified: card text, decks run avg 1.06 copies without supporting advantage engines).
Effect & Interaction 35 The direct-attack grant and other-monster lock are niche utility that require a pre-existing WATER monster and provide soft control for one turn, neither negation nor destruction (verified: text, guides list as generic tech card).
Material Utility 65 As a Rank 3 body with 2000 ATK/DEF, WATER attribute, and Sea Serpent type, it serves as clean generic Xyz material; the body survives effect negation and converts to Link or Synchro fodder (verified: appears in Shark 16.5%, Umi 9.2%, P.U.N.K. 14%).
Resilience & Flexibility 50 The card lacks multi-zone play or self-recovery; it is a one-shot summon that consumes materials over turns, though the 2000 ATK/DEF body survives blanking and the effect runs once per turn until exhaustion (verified: text, avg 1 copy per deck, no built-in recursion).
Deck-Building Efficiency 72 Runs in 64 archetypes as a free extra deck slot with no garnet risk for Level 3 decks; mostly 1 copy per deck suggests low redundancy need and high splashability across Control and Combo builds (verified: 400 decks, 379 run exactly 1 copy, avg 1.06).

Calculation

Weight profile: 0.7 Material body + 0.3 Extender. Intrinsic ≈ 57, Deck ≈ 52, Meta = provisional. Modifiers: Splashability bonus (1). Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Clean extra deck filler for any deck with Level 3 monsters; no garnet risk
  • Splashable across 64 distinct archetypes; particularly strong in Shark (68.75% inclusion, 1 copy typical)
  • Optional self-load effect provides modest material resilience compared to vanilla Rank 3 XYZs
  • WATER/Sea Serpent body valuable for archetype-specific homes (Shark, Umi, Icejade)
  • No archetype lock or build restriction; works equally in Control and Combo shells

Weaknesses

  • Requires two Level 3 monsters to summon (moderate accessibility cost, not universally guaranteed)
  • Direct-attack and lock effects are highly situational; require pre-existing WATER monster and favorable board state
  • No built-in searchability; entirely dependent on deck's natural Level 3 access and Rank 3 summoning routes
  • 2000 ATK/DEF is middling for a Rank 3; not a primary wincon or exceptional material body
  • Effect consumes Xyz materials without generating card advantage, disruption, or tempo

Counters / choke points

  • Effect negation (Infinite Impermanence, Effect Veiler) blanks the utility effect, leaving only a 2000 ATK/DEF body
  • Destruction or bounce (Raigeki, Evenly Matched, Cyclone) removes the card entirely
  • Deck space competition from stronger Rank 3 XYZ alternatives or different summon strategies in tight builds

Best use

Extra deck material body and conditional direct-attack setup in grindy matchups. Decks: Shark, P.U.N.K., Umi, Icejade. Suggested copies: 1.

Evidence & gaps

  • Verified: Rank 3 XYZ, requires 2 Level 3 monsters (card text); Legal in TCG, OCG, MasterDuel, DuelLinks (formats field); On Special Summon: optionally attach 1 Level 3 WATER monster from hand or field (card text); Once per turn: detach 1 Xyz Material, grant target WATER monster direct attack, lock other monsters from attacking (card text); Appears in 400 decks, 64 distinct archetypes (deck data); Shark archetype: 68.75% inclusion, 1 copy typical (usage statistics); No banlist restrictions; assumed 3 copies legal
  • Observed: 65.5% of sampled decks run Control-focused gameplay (format 7) (deck data); Top 5 partners are universal staples, not synergy cards: Impermanence, Called by the Grave, Ash Blossom, AA-ZEUS, Maxx C (top partners list); Average 1.06 copies per deck; 94.75% of decks run exactly 1 copy (deck data distribution); Plays in P.U.N.K. 14%, Umi 9.2%, Evil Eye 4.5%, Ancient Warrior 3.2%, indicating broad Level 3 compatibility
  • Inferred: Optional self-load effect (attach 1 from hand/field) provides one additional material resource, enhancing resilience vs. vanilla Rank 3 XYZs; Direct-attack effect situational: requires pre-existing WATER monster and benefit depends on opponent board state and timing; Turn-long lock on other monsters is soft control; does not negate, destroy, or prevent hand plays, merely redirects attack; 2000 ATK/DEF is middling for a Rank 3 XYZ; some alternatives exceed 2800 ATK or carry stronger disruption effects; Not searchable from deck; accessibility depends entirely on deck's natural Level 3 monster mix; Generic utility card with no archetype-exclusive synergy; value is as filler, not engine
  • Data gaps: No combos supplied — combo conversion cannot be measured from actual boards; 0 appearances limits confidence in board-building value No banlist token — assumed unlimited (3 copies legal) based on formats; no actual ban history provided No top card ranking — card not in top-tier lists (top-card status: false); metagame presence unknown Guide depth limited — mentioned as tech/staple in 6 guides but never featured as core strategy piece; limited synergy insight Ruling ambiguity (minor) — whether attaching and detaching same material in sequence is legal (negligible for power eval)











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