Trap
CounterTrap of Board Eraser
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2471
You can only activate this card when an effect that inflicts damage to your Life Points is activated (except Battle Damage). Negate the Effect Damage you receive and your opponent then selects 1 card from his/her hand and discards it.
Trap of Board Eraser — Power Evaluation
Final Score: 52 ± 8 · Confidence: Medium
- Intrinsic: 53 · Deck: 52 · Meta: provisional
- Primary role: Removal / Negation · Secondary: Utility
Why it scores here
Trap of Board Eraser is a conditional backrow negate: it only activates in response to an effect that inflicts damage to your Life Points, negates that damage, and makes the opponent discard one card. It converts a damage-based opponent play into a one-for-one plus a discard, which is a fair but narrow return. The card's stats are irrelevant (it is a Trap with no ATK/DEF), and its 3-copy presence across 5 decks confirms it is a practical, deliberately run piece in Chaos and Black Luster Soldier shells rather than a forgotten pick, but that frequency does not lift the score.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Set in the backrow and live when needed, but only if the opponent uses a damage-inflicting effect; no searcher or starter data is supplied (inferred, with observed 3 copies in all 5 decks). |
| Combo & Conversion | 20 | No combo boards are recorded and the card builds nothing on its own, so conversion rests on the text alone (inferred). |
| Resource Economy | 55 | It spends one card and makes the opponent discard one, so the exchange is roughly even with a slight edge from the discard (verified from text). |
| Effect & Interaction | 60 | Negates effect damage and forces a discard, but only against damage-based effects, which narrows its reach (verified from text). |
| Material Utility | 10 | A Trap has no material value (verified from card type). |
| Resilience & Flexibility | 35 | It is a single backrow card with a narrow trigger and no recursion or redundancy beyond the copies run (inferred). |
| Deck-Building Efficiency | 55 | Three copies in each of 5 decks is a moderate slot cost with no garnet or lock restriction (observed). |
Calculation
Weight profile: Primary role Removal / Negation, no secondary blend. Intrinsic ≈ 53, Deck ≈ 52, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Negates effect damage and makes the opponent discard, giving a two-sided return on a single trap
- Run at 3 copies across 5 recent decks in 3 archetypes, so it has practical homes
- Low deck-building cost with no garnet or self-lock restriction
Weaknesses
- Activation window is narrow: it only answers effects that inflict damage to your Life Points
- Does nothing against non-damage plays, board effects, or battle
- No combo or starter data supports any board-building role
Counters / choke points
- Cards and effects that do not inflict Life Point damage bypass it entirely
- Opponent can avoid damage-based lines or play around the trap by not using them
Best use
Backrow negate against damage-based opponent effects, with a discard follow-up. Decks: Chaos, Black Luster Soldier, Mask. Suggested copies: 3.
Evidence & gaps
- Verified: Negates the Effect Damage the player receives, then the opponent selects and discards 1 card from hand (card text); Activation is limited to effects that inflict damage to Life Points, excluding Battle Damage (card text); Trap card with no ATK, DEF, or Level (card data)
- Observed: Appears in 5 of 5 sampled decks at 3 copies each, across Chaos, Black Luster Soldier, and Mask (deck evidence); Shares its decks with high-frequency staples such as Pot of Greed, Card Destruction, and Heavy Storm (deck evidence; frequency only, not used for scoring)
- Inferred: Negation and discard rate as roughly one-for-one with a slight edge, since the trap is spent but the opponent loses a card (inferred from text); Narrow activation window reduces accessibility of value in games where the opponent uses no damage effects (inferred from text)
- 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