Spell
NormalCrystal Promise
Archetype:
Crystal Beast
View:
4102
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 starter role and searched-for role 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 combo role 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, starter role and searched-for role 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) combo role 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