Trap
ContinuousCore Reinforcement
Archetype:
Koa'ki Meiru
View:
3529
Select and Special Summon 1 "Koa'ki Meiru" monster from your Graveyard in Attack Position. When that monster is destroyed during your End Phase, the controller of this card takes damage equal to that monster's ATK. When this card is removed from the field, destroy that monster. When that monster is destroyed, destroy this card.
Core Reinforcement — Power Evaluation
Final Score: 48 ± 8 · Confidence: Medium
- Intrinsic: 45.8 · Deck: 50 · Meta: provisional
- Primary role: Recovery / Recursion · Secondary: Extender
Why it scores here
Core Reinforcement reliably returns one Koa'ki Meiru monster from the Graveyard to the field in Attack Position, which is a real recursion line inside its archetype. Its value is capped by what it leaves behind: it is a continuous trap that dies with the revived body, it deals ATK damage to its own controller at End Phase, and it provides no opponent interaction. Strong deck presence (13 of 13 sampled decks) confirms the card is practical in its home, but per guardrail 3 that frequency does not raise the score, and the absence of combo evidence keeps the combo axis near the text-only estimate.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Needs a Koa'ki Meiru monster already in the Graveyard and a set trap turn, but it runs in all 13 sampled decks with 100% co-occurrence with core Koa'ki Meiru partners (observed). |
| Combo & Conversion | 45 | Text shows one Graveyard monster returned to the field with no further board generation, and no combo boards were supplied to confirm a larger line (inferred). |
| Resource Economy | 60 | Recursion of a Graveyard body is a card-neutral to slightly positive exchange, offset by the self-damage at End Phase when the body is destroyed (inferred). |
| Effect & Interaction | 10 | The card has no negation, removal, or hand-trap effect against the opponent; its only destruction clauses act on the board you control (verified). |
| Material Utility | 25 | The trap itself is never material, so value depends on the revived Koa'ki Meiru body, which is not scored here (inferred). |
| Resilience & Flexibility | 35 | A continuous trap on the field is exposed to backrow removal and dies when the linked monster is destroyed or removed (inferred). |
| Deck-Building Efficiency | 65 | A single trap slot with no garnet or lock, typically run at 2 copies across 13 sampled decks with no usage data to suggest a brick risk (observed). |
Calculation
Weight profile: 0.7 Recovery/Recursion + 0.3 Extender. Intrinsic ≈ 45.8, Deck ≈ 50, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Returns a Graveyard Koa'ki Meiru monster to the field in Attack Position without a card cost
- Present in all 13 sampled decks alongside core Koa'ki Meiru partners
- Single trap slot with low deckbuilding cost
Weaknesses
- Trap is lost when the revived monster is destroyed or removed
- Controller takes damage equal to the monster's ATK at End Phase when that monster is destroyed
- No opponent interaction, so it does not affect the opponent's turn
Counters / choke points
- Removal or destruction of the set or face-up continuous trap
- Destruction or removal of the revived Koa'ki Meiru monster, which also ends the trap
Best use
Recovery / Recursion: Graveyard-to-field revival of a Koa'ki Meiru body with linked destruction. Decks: Koa'ki Meiru. Suggested copies: 2.
Evidence & gaps
- Verified: Card text: Special Summon 1 Koa'ki Meiru monster from the Graveyard in Attack Position; Card text: controller takes damage equal to that monster's ATK when it is destroyed during your End Phase; Card text: linked destruction when this card leaves the field or the monster is destroyed; Decks evidence: runs in 13 of 13 sampled decks, avg 2.08 copies
- Observed: 100% co-occurrence with Koa'ki Meiru Urnight, Koa'ki Meiru Crusader and Iron Core of Koa'ki Meiru in the deck sample; Mode of 2 copies per deck
- Inferred: Recursion role is real but depends on a Koa'ki Meiru body in the Graveyard; Backrow vulnerability and linked-destruction downside lower resilience and effect scores
- Data gaps: no combos supplied, so combo conversion is text-only inference no guides supplied no banlist token, assumed 3 copies (unlimited) no usage statistics (StatisticsCard), so archetype inclusion is inferred from the deck sample only no rulings supplied for the End Phase damage timing