Spell
NormalCrystal Promise
Archetype:
Crystal Beast
View:
4084
Target 1 "Crystal Beast" card in your Spell & Trap Card Zone; Special Summon that target.
Crystal Promise — Power Evaluation
Final Score: 48 ± 8 · Confidence: Medium
- Intrinsic: 46 · Deck: 49 · Meta: provisional
- Primary role: Combo enabler
Why it scores here
Crystal Promise turns a Crystal Beast already in your Spell & Trap Zone into a Special Summon, so it converts a set backrow piece into board presence rather than acting as a standalone body. The score comes from the Crystal Beast shell: 302 decks, 94.7% co-occurrence with Crystal Bond, 100% appearance in three recorded boards, and an average power index of 87. High deck counts and the 100% usage inclusion reflect consistent play in a narrow shell rather than intrinsic strength, and they earned little beyond accessibility because the combo data assigns it no starter, searched, or material role.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Needs a Crystal Beast already in the Spell & Trap Zone, and as_starter and as_searched are both 0; the routine partner pairing with Crystal Bond (94.7%) suggests the setup is common (inferred). |
| Combo & Conversion | 55 | Appears in all 3 recorded boards with an average power index of 87, but role_in_combo is empty and the card is never tagged as starter or payoff, so its direct contribution is modest (observed). |
| Resource Economy | 40 | Spends itself for a single Special Summon with no draw, banish, or refuel; the +3 to +5 netCardAdvantage in the examples belongs to the wider line (observed). |
| Effect & Interaction | 5 | The text grants no negation, removal, or disruption to the opponent (verified). |
| Material Utility | 25 | A Spell cannot be material; it only delivers a Crystal Beast body, which is a weak material contribution by itself (inferred). |
| Resilience & Flexibility | 40 | Depends on one backrow Crystal Beast surviving; the text has no once-per-turn clause and no multi-zone reach, and the once-per-turn status is unknown (inferred). |
| Deck-Building Efficiency | 40 | Restricted to the Crystal Beast shell (about 1.39 copies per deck), so it is a dead slot when no backrow Crystal Beast is present; usage stats show 1 typical copy (observed). |
Calculation
Weight profile: Single primary role: Combo enabler; no secondary blend. Intrinsic ≈ 46, Deck ≈ 49, Meta = provisional. Modifiers: self-locking restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Converts a set Crystal Beast backrow card into a Special Summon
- Present in 302 decks, with 94.7% co-occurrence with Crystal Bond
- Appears in all 3 recorded combo boards with an average power index of 87
Weaknesses
- Needs a Crystal Beast already in the Spell & Trap Zone
- No starter, searched, or material role in the combo data
- No opponent interaction
- Dead outside the Crystal Beast shell
Counters / choke points
- Backrow removal or Spell & Trap destruction that hits the set Crystal Beast (inferred, not in evidence)
Best use
Combo enabler (backrow-to-field Special Summon). Decks: Crystal Beast. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: Target 1 Crystal Beast card in your Spell & Trap Card Zone; Special Summon that target; Formats: TCG, OCG, MasterDuel, DuelLinks; Card is not a Top Card in any format
- Observed: 302 decks, 16 archetypes, 94.7% co-occurrence with Crystal Bond; Combo appearance 3 of 3, avg power index 87, as_starter and as_searched 0; usage_statistics: Crystal Beasts gameplay 3, 100% inclusion, 1 typical copy
- Inferred: Accessibility depends on a backrow Crystal Beast being set first; Material contribution is limited because the Spell itself cannot be material; Backrow removal is a plausible counter
- Data gaps: no banlist token; assumed 3 copies (unlimited) role_in_combo is empty in all three combo examples card text does not state which monsters can be in the Spell & Trap Zone or whether the effect is once per turn guide mentions are generic snippets with no role description