Sirenorca

Sirenorca — Power Evaluation

Final Score: 54 ± 7 · Confidence: Medium

• Intrinsic: 54 · Deck: 55 · Meta: provisional
• Primary role: Combo enabler · Secondary: Material body, Extender

Why it scores here

Sirenorca is a WATER Winged Beast that Special Summons itself from the hand for free once you control both a Fish and a Winged Beast monster, then sets every monster you control to a declared Level 3-5 so mixed-level bodies align into Xyz plays. It reliably converts a prepared Fish + Winged Beast board into an extra body and Level flexibility, but it does nothing on an empty or mono-type board and offers zero interaction with the opponent. Its ATK of 2200 and rarity earn it nothing; the score reflects the conditional free body and Level-alignment material value, tempered by the type requirement and the non-WATER effect lock. It is a real but narrow tool whose observed inclusion (15 decks, 2.2 avg copies, 6 archetypes) confirms it is played, not that it is intrinsically strong.

Axis scores

Calculation

Weight profile: 0.7 Combo enabler + 0.3 Material body. Intrinsic ≈ 54, Deck ≈ 55, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

• Free inherent Special Summon from hand once a Fish and a Winged Beast are on the field
• Aligns all your monsters to a declared Level 3-5, enabling Rank 3/4/5 Xyz flexibility
• WATER-only effect lock is nearly free in an all-WATER Winged Beast/Fish shell
• No archetype restriction, so it slots into Umi Control, Shark, and similar WATER builds

Weaknesses

• Requires both a Fish and a Winged Beast on board to summon — dead on an empty or mono-type board
• Provides no interaction, disruption, or removal against the opponent
• Activating the Level effect locks all non-WATER monster effects for the rest of the turn
• 2200 ATK on a Level 5 body is not a meaningful combat threat by itself

Counters / choke points

• Removing the Fish or Winged Beast before summoning denies the self-Special Summon condition
• Summon negation (e.g. Solemn-style traps) stops the inherent Special Summon entirely
• Effect negation on the 'When you do' trigger prevents the Level modulation
• Decks not running both Fish and Winged Beast types cannot use it at all

Best use

Hand-body extender and Level-alignment Xyz enabler. Decks: Umi Control, Shark, Seventh, Harpie-WATER hybrid. Suggested copies: 2.

Evidence & gaps

• Verified: Special Summons itself from the hand if you control both a Fish and a Winged Beast-Type monster (card text); When summoned that way, you can declare a Level 3-5 and make the Levels of all monsters you currently control that Level (card text); Activating the effect locks all monsters you control out of activating their effects for the rest of the turn, except WATER monsters (card text); It is a Level 5 WATER Winged Beast with 2200 ATK / 1000 DEF and no archetype (card text)
• Observed: Ran in 15 sampled decks at 2.2 copies on average, all in the main deck (deck data); Co-occurs with Blizzard Falcon, Aurora Wing, Ice Princess Zereort and Ice Beast Zerofyne at 80% (deck data); Spread across 6 archetypes, led by Umi Control 26.7% and Shark 20%, with Seventh, Harpie, and CXyz also present (deck data); No recorded combo appearances, so no observed starter/material/payoff split (combo data)
• Inferred: Level alignment to 3-5 lets it convert mixed-level WATER bodies into extra Xyz ranks (inference from text); The 'except WATER monsters' lock is effectively free in an all-WATER Winged Beast/Fish build (inference); Its free body plus Level setting make it an extender rather than a stand-alone starter (inference)
• Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion % inferred from deck sample only