Trap
ContinuousSeventh Eternity
Archetype:
Seventh
View:
3506
Target 1 "Number" Xyz Monster you control that has a number between "101" and "107" in its name, or 1 Xyz Monster you control that has any such monsters as material, then activate 1 of these effects; ● Negate the effects of 1 monster your opponent controls with ATK less than or equal to the targeted monster's ATK, until the end of this turn. ● Detach all materials from the targeted monster, then you can Special Summon 1 "Number" Xyz Monster from your GY. You can only use this effect of "Seventh Eternity" once per turn.
Seventh Eternity — Power Evaluation
Final Score: 52 ± 6 · Confidence: Medium
- Intrinsic: 51 · Deck: 54 · Meta: provisional
- Primary role: Removal/Negation · Secondary: Recovery/Recursion
Why it scores here
Seventh Eternity is a Continuous Trap whose value comes from one once-per-turn effect: it either negates a monster with ATK at or below a targeted Number Xyz's ATK, or detaches that Xyz's materials to Special Summon a Number from the GY. It is a real, practical card in this sample (61 decks, 88.5% of them in the Shark-linked Number/Seventh shell), so it earns accessibility and deck-fit credit. Its high-ATK Number targets and the Seventh theme name earn nothing on their own. The combo evidence is empty, so combo conversion is text-only inference and is scored conservatively.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Live as a backrow trap whenever a Number Xyz is on the field, and carried in 61 of the 400 sampled decks at about 1.2 copies each (verified, observed). |
| Combo & Conversion | 45 | The GY-recovery branch converts a board into a Number summon, but no recorded boards exist to confirm the chain (inference, no combo evidence). |
| Resource Economy | 40 | The GY summon is a recovery on the same trade, and the negation spends the trap for one monster, so there is no net card advantage (inferred from text). |
| Effect & Interaction | 55 | Negates one monster with ATK at or below the target's ATK, once per turn, with a restriction on which monster qualifies (verified from text; the restriction limits reach). |
| Material Utility | 0 | A Trap card, so it cannot be used as Xyz or Fusion material (verified from card type). |
| Resilience & Flexibility | 40 | A single Continuous Trap that is vulnerable to spell/trap destruction, and its once-per-turn limit caps redundancy (verified from text, inferred for interaction). |
| Deck-Building Efficiency | 70 | Mostly single copies, no garnet or lock, and a slot cost that fits a Number deck (observed: 50 of 61 decks run one copy). |
Calculation
Weight profile: 0.7 Removal/Negation + 0.3 Recovery/Recursion. Intrinsic ≈ 51, Deck ≈ 54, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Live in the dominant Number/Seventh deck shell (61 decks, 88.5% with Rank-Up-Magic - The Seventh One)
- Two modes: a negation and a GY recovery, so it has value on both sides of the trade
- Single-copy deck slot with no garnet or lock cost
Weaknesses
- Only useful while a Number Xyz is on the field or as material, so it is dead in many openings
- The negation is limited by the ATK comparison, so it cannot stop a high-ATK monster
- Once-per-turn limit and a trap card's vulnerability to spell/trap removal
Counters / choke points
- Spell/trap destruction (weakens the Continuous Trap on the field)
- Negating or stopping the Number Xyz before the effect can be activated
Best use
Backrow negation and GY recovery for Number Xyz lines. Decks: Shark / Number shell, Galaxy Photon, Seventh-based Xyz builds. Suggested copies: 1.
Evidence & gaps
- Verified: Trap card with a once-per-turn negation or GY-summon effect, targeting a Number Xyz (card text); Played in 61 of 400 sampled decks; 88.5% alongside Rank-Up-Magic - The Seventh One (deck stat); Copies per deck: 1.21 average, with 50 decks at 1 copy (deck stat)
- Observed: Gameplay concentrated in type 7 (88.5% of decks) and 13 distinct archetypes, dominated by Shark at 67%
- Inferred: The GY-summon branch is the recovery route when the board is clear, but this is not shown in recorded boards; Negation reach is limited to monsters at or below the target's ATK
- 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