Eternal Galaxy
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Eternal Galaxy

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If you control a "Photon" or "Galaxy" monster: Target 1 Xyz Monster you control; Special Summon from your Extra Deck, 1 "Photon" or "Galaxy" Xyz Monster that is 4 Ranks higher than that target, by using that target as material. (This is treated as an Xyz Summon. Transfer its materials to the Summoned monster.) You can only activate 1 "Eternal Galaxy" per turn.




 
 
AI Power Analysis
ExtenderConfidence: MediumEvaluated Oct 9, 2026
51± 6/ 100
Power Score
Intrinsic 50
Deck 52

Eternal Galaxy — Power Evaluation

Final Score: 51 ± 6 · Confidence: Medium

  • Intrinsic: 50 · Deck: 52 · Meta: provisional
  • Primary role: Extender

Why it scores here

Eternal Galaxy converts an existing Photon or Galaxy Xyz monster into a Xyz monster four ranks higher, reusing the target as material. The printed text supports a strong one-card conversion, and its 400/400 deck presence with 90%+ partner rates confirms it is a live, practical piece of the Galaxy Photon engine. It is not a Trap that interacts or protects, so it earns almost nothing on effect interaction or material utility. Its restriction to Photon and Galaxy Xyz monsters, plus the lack of any recorded combo data, keeps the score in the middle band rather than near the top.

Axis scores

Axis Score Evidence
Accessibility 55 It is a Trap, so it needs to be set and there is no searcher or searched-for role data to show a reliable route into hand (inferred, with observed 1-copy deck inclusion).
Combo & Conversion 72 Text describes one-card conversion from a Xyz target to a Xyz monster four ranks higher, but combo data has 0 boards, so the conversion is text-only inference.
Resource Economy 65 The materials transfer to the new monster, so the effect keeps material value without a card-advantage cost (verified text, with no observed draw or refuel data).
Effect & Interaction 15 The card has no negation, removal or hand-trap function, so it provides essentially no opponent interaction (verified text).
Material Utility 10 As a Trap it is never a material body; the score reflects only that it does not lose value by being a non-monster (verified card type).
Resilience & Flexibility 40 It needs a Photon or Galaxy Xyz target on the field and is limited to once per turn, which is a narrow, single-line route (verified text, once-per-turn clause).
Deck-Building Efficiency 40 It is a single-copy slot (observed avg 1.03 copies) but dead outside Photon and Galaxy Xyz decks, which is a self-restriction (verified text plus observed archetype spread).

Calculation

Weight profile: Extender primary role, no secondary blend. Intrinsic ≈ 50, Deck ≈ 52, Meta = provisional. Modifiers: self-locking restriction (-3). Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Converts one existing Photon or Galaxy Xyz monster into a rank+4 Xyz in a single activation (verified text)
  • Appears in 400 of 400 sampled decks, with 90%+ partner rates for the core Galaxy Photon monsters (observed)
  • Single-copy slot and no garnet cost beyond the Photon and Galaxy engine (observed)

Weaknesses

  • Needs a Photon or Galaxy Xyz monster already on the field, so the card is dead before the engine starts (verified text)
  • Once per turn activation limit (verified text)
  • No opponent interaction, negation or removal (verified text)
  • No recorded combo boards to confirm the conversion in practice (data gap)

Counters / choke points

  • Negation of the Trap or the summon effect by the common counter traps (inferred, no counter data supplied)
  • Opponent hand traps or board removal that clears the Photon or Galaxy Xyz target before activation (inferred)

Best use

Single-copy Xyz extension trap for Photon and Galaxy boards. Decks: Galaxy Photon, Galaxy-Eyes Photon Dragon builds, Tachyon Galaxy-Eyes lines that run Photon or Galaxy Xyz monsters. Suggested copies: 1.

Evidence & gaps

  • Verified: Card text: requires control of a Photon or Galaxy monster and a target Xyz monster you control; Card text: Special Summons a Photon or Galaxy Xyz monster rank 4 higher, using the target as material, treated as an Xyz Summon; Card text: once per turn activation limit; Card type is Trap Card, with no negation or removal text
  • Observed: Present in 400 of 400 sampled decks, 1 copy in 387 of them (avg 1.03); Top partners appear in 90% to 97% of sampled decks; Galaxy Photon archetype StatisticsCard inclusion 76.9% with typical 1 copy
  • Inferred: Trap timing means it must be set before use, with no hand-activation route in the text; Its power depends on the Photon and Galaxy engine being intact, so the 51 score is a narrow-engine read; Score is Medium confidence because deck evidence is strong but combo evidence is absent
  • Data gaps: no combos supplied, so combo conversion is text-only inference no searcher or searched-for role data, so accessibility uses the 1-copy deck pattern as a proxy no banlist token supplied, assumed 3 copies (unlimited) no counter-trap or hand-trap data for the counters list 23 distinct archetypes are mostly Galaxy Photon variants, so the spread is narrower than the count suggests











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