Spell
NormalHeavy Storm
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10764
Destroy all Spell and Trap Cards on the field.
Heavy Storm — Power Evaluation
Final Score: 58 ± 6 · Confidence: Medium
- Intrinsic: 60 · Deck: 56 · Meta: provisional
- Primary role: Board breaker
Why it scores here
Heavy Storm is a non-searchable backrow sweeper: its verified text destroys every Spell and Trap on the field, both sides, and it does nothing on its own when no backrow exists. Its score comes from the Board breaker profile, where effect interaction carries the most weight, plus a single-copy slot that fits 136 distinct archetypes. The 400-of-400 deck inclusion and the 100% inclusion rates are frequency signals, so they confirm the card is practical but add no points beyond that; the only recorded combo board (one sample, as_starter 0) is too thin to raise combo conversion. Its material utility is 0 because it is a Spell and cannot be used as material.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 70 | Not searchable and needs to be drawn, but it is live whenever it is in hand and shows up in 400 of 400 sampled decks (observed; text is verified). |
| Combo & Conversion | 30 | Only one recorded combo board contains it, and it is not a starter, searched, or material piece (observed, thin sample; the rest is inferred). |
| Resource Economy | 40 | A one-card cost that can be a 2-for-1 when the opponent has more backrow, but it also destroys the user's own Spell and Trap cards (verified text, inferred trade-off). |
| Effect & Interaction | 70 | Broad, untargeted backrow removal that answers set cards in one activation; opponents can only play around it by not setting backrow (verified text, inferred reach). |
| Material Utility | 0 | A Spell card cannot be used as material, so the score is 0 (verified from frame_type spell). |
| Resilience & Flexibility | 40 | A single-use, reactive effect with no recursion or redundancy in the evidence; the line depends on the opponent having backrow to hit (inferred). |
| Deck-Building Efficiency | 70 | Runs one copy in 396 of 400 decks with no garnet or restriction recorded, so it is a cheap, flexible slot (observed, avg 1.01 copies). |
Calculation
Weight profile: Board breaker / Going-second primary; no secondary blend applied. Intrinsic ≈ 60, Deck ≈ 56, Meta = provisional. Modifiers: Forbidden in TCG (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- One card clears all Spell and Trap cards on the field, both sides
- Untargeted, so it answers set backrow without needing a specific target
- Single-copy slot that fits 136 distinct archetypes
- Cheap to run: no garnet or restriction recorded
Weaknesses
- Also destroys the user's own Spell and Trap cards
- Does nothing when the opponent has no backrow
- Not a searcher, starter, or material body (as_starter 0, as_material 0)
- Forbidden in TCG (legal_copies.tcg 0)
Counters / choke points
- Opponent keeps no Spell or Trap on the field, so the card has no target (inferred)
- Opponent responds with a negation of the Spell's effect; no specific counter is named in the evidence (inferred)
Best use
Single-copy backrow clear for Master Duel decks. Decks: Sky Striker, Cyberdark, Diabellstar, Unchained, Fiendsmith. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: destroys all Spell and Trap cards on the field; legal_copies: tcg 0, ocg 1, masterduel 1; Frame type is spell, so it cannot be material
- Observed: Present in 400 of 400 sampled decks, 396 at one copy (avg 1.01); Gameplay type 7 accounts for 95.5% of decks; 136 distinct archetypes; Single combo board sample, with 0% as starter, searched, or material; Inclusion of 100% in several StatisticsCard archetypes
- Inferred: Board breaker role, since the text is a backrow sweep and the combo sample shows no starter role; Live when drawn, but dead when the opponent has no backrow; Resource trade-off depends on the opponent's backrow count
- Data gaps: Only one recorded combo board, so combo conversion rests on a sample of 1 No rulings or tournament results in the evidence top_card_context shows is_top_card false despite 400 sampled decks, so the frequency signal may come from sample composition Guides mention the card only in staple lists, not as an explained role