WATER
Number 4: Stealth Kragen
ATK:
1900
DEF:
1500
View:
6180
2 Level 4 WATER monsters All face-up monsters on the field become WATER. Once per turn, during the Main Phase (Quick Effect): You can destroy 1 WATER monster your opponent controls, and if you do, inflict damage to your opponent equal to half the ATK it had on the field. If this Xyz Summoned card is destroyed: You can Special Summon "Stealth Kragen Spawn(s)" from your Extra Deck, up to the number of materials this card had, then you can attach up to 1 WATER monster from your GY to each of those Special Summoned monsters as material.
Number 4: Stealth Kragen — Power Evaluation
Final Score: 62 ± 6 · Confidence: Medium
- Intrinsic: 63.8 · Deck: 60.3 · Meta: provisional
- Primary role: Extender · Secondary: Recursion
Why it scores here
Stealth Kragen is a consistent extender and board piece in WATER decks, with high inclusion rates (77–100%) across 44+ archetypes including Shark, Marincess, and Mermail. Its primary value comes from flexible removal (destroy opponent's WATER monster, deal half damage) and recursion via Spawn tokens on destruction, rather than combo generation. Combo evidence is minimal (1 combo, 0% role appearances, power index 24), confirming it is a staple slot-filler rather than a combo driver. The card scores moderately because it provides utility and consistency in its homes but lacks the power index and centrality of stronger XYZ options.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 72 | Requires 2 Level 4 WATER monsters and appears in 77–100% of archetypes tracked in usage statistics, making it accessible in dedicated homes but dependent on WATER synergy (verified). |
| Combo & Conversion | 35 | The single combo example shows the card at 0% appearances in all roles (starter role, payoff role, material role, etc.) and a power index of only 24, indicating minimal combo drive (verified). |
| Resource Economy | 55 | The removal effect trades the XYZ body for an opponent's resource plus half-damage, roughly even; Spawn tokens provide mild recursion when destroyed (inferred from text and 49.5% Spawn co-deck rate). |
| Effect & Interaction | 62 | Once-per-turn Quick Effect removal targeting WATER monsters on opponent's board with conditional damage component; soft interaction dependent on WATER availability (verified from text). |
| Material Utility | 68 | Serves as a 1900-ATK Rank 4 WATER/Aqua body suitable for XYZ strategies; destruction triggers Spawn token generation for continued material supply (verified from text and 49.5% Spawn co-deck rate). |
| Resilience & Flexibility | 70 | Provides recursion via Spawn tokens on destruction, allowing multi-turn value; Spawns can attach GY WATER as material, extending plays beyond a single turn (inferred from text). |
| Deck-Building Efficiency | 75 | Requires WATER/Rank 4 synergy but is flexible within those constraints; 1.1 average copies per deck and high inclusion (77–100%) show it is a clean, optional tech with no garnet risk (observed from deck data). |
Calculation
Weight profile: 0.7 Extender + 0.3 Recursion. Intrinsic ≈ 63.8, Deck ≈ 60.3, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Consistent inclusion across 44+ archetypes (highly splashable in WATER)
- Recursion via Spawn tokens on destruction for multi-turn value
- Easy to summon in any WATER deck with 2 Level 4 bodies
- Flexible removal and damage effect as a Quick Effect
- Solid Rank 4 body (1900 ATK) for XYZ strategies
Weaknesses
- Minimal combo evidence and central role detection (0% in all combo role categories)
- Removal effect is WATER-dependent and may whiff against non-WATER boards
- No card advantage generation; trades XYZ body for resource removal
- Spawn token recursion requires destruction, making it fragile to negation
- Low power index in observed combo (24) suggests limited combo amplification
Counters / choke points
- Ash Blossom & Joyous Spring (negates Spawn summoning)
- Any monster effect negation on the destruction trigger
- Decks running non-WATER monsters make the removal effect situational
- Hand traps disrupting the Rank 4 XYZ summon
Best use
Extender/board piece in WATER XYZ strategies. Decks: Shark, Marincess, Mermail Atlantean, K9, Ghoti, Onomat, Icejade, Umi. Suggested copies: 1.
Evidence & gaps
- Verified: Card text and effects present in description; 400 decks sampled, 44 distinct archetypes run it (deck data); 77–100% inclusion in key archetypes (Fishborg, Cloudian, Marincess, Shark, etc.) per usage statistics; Stealth Kragen Spawn synergy at 49.5% co-deck rate (deck data.top partners); Rank 4 XYZ summoning requirement from card text; WATER attribute and Aqua race from card data
- Observed: High inclusion rates: 77–100% across tracked archetypes (usage statistics); Average 1.1 copies per deck; distribution: 367 at 1 copy, 28 at 2 copies, 5 at 3 copies (deck data.copies per deck); 0% appearances in all combo role categories (starter role, payoff role, material role, etc.); Combo power index of only 24 when present (combo data.average power index); Listed in guide sections as Staple or Extra Deck option, not highlighted as core piece (guide data); Gameplay split: 84.8% standard (gameplay 7), 15.2% Rush Duel (gameplay 4)
- Inferred: Primary role is Extender/board piece based on high deck inclusion but 0% combo roles; The 'all monsters become WATER' effect enables its own removal effect and sets up synergy; Spawn token recursion provides multi-turn value when destruction occurs; Serves as a flexible Rank 4 slot-filler in WATER strategies, not a combo driver; High inclusion across 44+ archetypes suggests it is a generic WATER tech, not archetype-specific
- Data gaps: Combo evidence is extremely thin: only 1 combo total with 0% role appearances in any category No banlist information provided (assumed 3 copies unlimited) No top-card ranking data to confirm metagame performance Single combo example has unusually low power index (24); uncertain if this represents the card's typical homes Combo role breakdown shows 0% in all categories, making it unclear whether the card is a marginal inclusion or a late-game option