Spell
EquipBook of Secret Arts
Archetype:
Book of
View:
3762
A Spellcaster-Type monster equipped with this card increases its ATK and DEF by 300 points.
Book of Secret Arts — Power Evaluation
Final Score: 37 ± 6 · Confidence: Medium
- Intrinsic: 36 · Deck: 38 · Meta: provisional
- Primary role: Utility
Why it scores here
Book of Secret Arts is a plain Equip Spell that gives +300 ATK and DEF to a Spellcaster-Type monster it is attached to, and nothing else. It converts access into a small stat boost on one Spellcaster body, not into card advantage, board development or interaction. Its near-universal deck presence (22 of 22 sampled decks, avg 2.36 copies) confirms it is a reliable, cheap staple in Spellcaster-friendly lists, but frequency is not power here (guardrail 3). The score stays low because no combo, searcher or negation evidence supports a stronger role.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 45 | Present in all 22 sampled decks at an average of 2.36 copies, but it has no searcher text and no combo starts were recorded, so in-hand reliability is only partly known (observed). |
| Combo & Conversion | 25 | The text yields only a +300/+300 stat boost on one Spellcaster, with no extra body and no board building; combo data has 0 appearances (verified from text, observed as zero boards). |
| Resource Economy | 25 | An Equip Spell with no draw, search, recursion or banish refuel in its text, so it gives no card advantage (verified). |
| Effect & Interaction | 5 | The card has no negation, removal or hand-trap effect (verified from text). |
| Material Utility | 5 | It is a Spell Card and cannot be used as Link, Synchro or Xyz material (verified from frame type). |
| Resilience & Flexibility | 30 | Equip Spells are lost to backrow and monster removal, and the stat boost ends if the target leaves the field (inferred from equip rules). |
| Deck-Building Efficiency | 65 | Single-copy-friendly and cheap to run, with no garnet or lock, but it is dead without a Spellcaster target (verified from text; deck data). |
Calculation
Weight profile: Utility default profile (no dominant role); no secondary roles blended. Intrinsic ≈ 36, Deck ≈ 38, Meta = provisional. Modifiers: Spellcaster-only restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Reliable deck staple: 22 of 22 sampled decks, 3 copies in 14 of them
- Spread across 12 archetypes and 4 gameplay types, so it is not tied to one home
- Clean, unambiguous text with no timing or ruling risk
- Cheap to include, with no garnet or lock cost
Weaknesses
- Gives +300 ATK/DEF only, with no extra body, draw, search or interaction
- Works only on Spellcaster-Type monsters
- Equip Spells are vulnerable to backrow and monster removal, and the boost is lost when the target leaves the field
- No combo evidence showing it starts or finishes a line
Counters / choke points
- Spell/Trap removal or destruction effects
- Monster removal or banish effects that take the equipped Spellcaster
- Opposing Spellcaster-based boss or stat-check lines that the +300 does not beat
Best use
Utility stat boost on a Spellcaster body. Decks: Dark Magician lines, Pendulum Magician lines, Hole and Book of decks with Spellcaster bodies.
Evidence & gaps
- Verified: Card text: a Spellcaster-Type monster equipped with this card gets +300 ATK and DEF; Spell Card, Equip race; formats TCG, OCG, MasterDuel, DuelLinks; 22 sampled decks run it in the main deck; 12 distinct archetypes
- Observed: Copies per deck: avg 2.36, max 3 (distribution 1:6, 2:2, 3:14); Gameplay spread: type 6 (10 decks), type 4 (6), type 7 (5), type 3 (1); Zero combo boards recorded
- Inferred: Equip Spells are lost to backrow and monster removal; Practical value depends on a Spellcaster being present on the field
- Data gaps: no combos supplied: combo conversion is text-only inference no guides supplied no usage statistics (StatisticsCard) for this card top-card data has no rankings, so popularity cannot be checked legal copies is empty; assumed 3 copies (unlimited) no banlist token; assumed unlimited in all listed formats