Crystal Beast Deck #705687 — Yu-Gi-Oh! OCG
45 Main, 18 Extra, incl. Crystal Beast Sapphire Pegasus x3, Nibiru, the Primal Being x3, Revolution Synchron x3. Created May 21, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 05/21/2026
Main Deck (45)
- Crystal Beast Amber Mammoth x1
- Crystal Beast Amethyst Cat x1
- Crystal Beast Cobalt Eagle x1
- Crystal Beast Emerald Tortoise x1
- Crystal Beast Rainbow Dragon x2
- Crystal Beast Ruby Carbuncle x1
- Crystal Beast Sapphire Pegasus x3
- Crystal Beast Topaz Tiger x1
- Nibiru, the Primal Being x3
- Rainbow Dragon x1
- Therion "King" Regulus x1
- Revolution Synchron x3
- Ancient City - Rainbow Ruins x1
- Awakening of the Crystal Ultimates x3
- Clockwork Night x1
- Crystal Beacon x1
- Crystal Bond x3
- Crystal Promise x1
- Crystal Tree x1
- Foolish Burial Goods x3
- Golden Rule x3
- Rainbow Bridge x3
- Rainbow Bridge of the Heart x3
- Therion Discolosseum x1
- Crystal Miracle x1
- Rainbow Bridge of Salvation x1
Extra Deck (18)
- Snake-Eyes Doomed Dragon x3
- Ultimate Crystal Rainbow Dragon Overdrive x1
- Ancient Fairy Dragon x1
- Black Rose Dragon x1
- Crystal Wing Synchro Dragon x1
- Power Tool Dragon x1
- Ashura King x1
- Dingirsu, the Orcust of the Evening Star x1
- Divine Dragon Knight Felgrand x1
- DoomZ Break - Diactorus x1
- Gigantic "Champion" Sargas x1
- Number 106: Giant Hand x1
- Number 3: Cicada King x1
- Number 38: Hope Harbinger Dragon Titanic Galaxy x1
- Number 60: Dugares the Timeless x1
- Springans Merrymaker x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 55.8 |
| Going First | 58 |
| Going Second | 50 |
| Meta Power | provisional |
| Tournament Reliability | 42 |
- Primary strategy: Combo
- Secondary strategies: Toolbox
- Format: ocg
Legality
Main 45 / Extra 18 / Side 0 — status: Illegal. 4 violation(s).
Identity & game plan
- Win condition: Ultimate Crystal Rainbow Dragon Overdrive and Rainbow Dragon (Inferred: Special Summon via 7 different-name Crystal Beast cards in the Spell & Trap Zone or GY); Xyz and Synchro boards from Crystal Beast monsters placed as Continuous Spells, plus Gigantic Sargas and Hope Harbinger Dragon Titanic Galaxy as board-breakers (Inferred)
- Turn 1 (going first): Crystal Bond or Rainbow Bridge to fetch a Crystal Beast, Sapphire Pegasus or Ruby Carbuncle to place Crystal Beast monsters into the S&T Zone, building toward Awakening of the Crystal Ultimates and Rainbow Dragon (Inferred)
- Turn 2 (going second): Hold Nibiru or Crystal Miracle to answer the opponent's board, then rebuild through Rainbow Bridge of Salvation and Crystal Tree recursion (Inferred)
- Recovery: Recursion from the S&T Zone (Cobalt Eagle, Emerald Tortoise, Amber Mammoth, Topaz Tiger) and Crystal Beast searchers from the Deck (Inferred)
- After siding: No side deck is registered, so no post-side plan exists (Provisional)
Why it scores here
The Crystal Beast core is reasonably accessible: about 88% of hands from the 15-copy core group contain at least one card, and 17 searcher-text cards lift the odds of a playable starter. The ceiling is high on text alone, since Awakening of the Crystal Ultimates, Rainbow Dragon and Ultimate Crystal Rainbow Dragon Overdrive can close the game from one engine line. The median is much weaker because the list mixes Crystal, Rainbow Bridge, Therion, Springans, DoomZ and Rose Dragon engines, which lowers brick tolerance and conversion. The interaction suite (Nibiru, Crystal Miracle, Ashura King, Hope Harbinger, Felgrand) earns credit for breadth, but the deck has no side plan and the list is Illegal, so the final score is capped. No combo boards, tournament results, or guides were supplied, so the score rests on text and probability inference. Popularity and archetype usage did not add points, and no card scores were averaged.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 62 | P(>=1 of 15 core Crystal Beast cards in opening 5) = 0.88; Crystal Bond alone is 0.30 in hand (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 50 | Mixed engines and 3-copy staples (Golden Rule, Crystal Bond, Rainbow Bridge) create some dead or conflicting hands; 0.12 proxy brick rate (Inferred) |
| D3 | Combo Conversion & Ceiling | 68 | Ceiling from text: Awakening, Rainbow Dragon and Ultimate Crystal Overdrive chain through S&T placements; no recorded boards (Inferred) |
| D4 | Combo Floor & Median Output | 50 | Median output is unmeasured; the engine-mix and recursion routes suggest a weaker typical result (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Several S&T-recursion monsters and Crystal Miracle/Rainbow Bridge of Salvation give some redundancy; only 3 hand traps (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 62 | 17 searcher-text cards plus Crystal Tree and S&T recursion sustain resources (Inferred) |
| D7 | End-Board & Interaction Quality | 60 | Nibiru, Crystal Miracle, Felgrand, Hope Harbinger and Giant Hand provide layered negation text; no interaction-density data (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 50 | Hand traps and Hope Harbinger offer going-second answers; board-breaker density is unmeasured (Inferred) |
| D9 | Offensive Pressure & Closing Power | 65 | Rainbow Dragon 4000 ATK and Overdrive 4000 ATK are closing threats; direct-attack text is limited (Verified stats, Inferred role) |
| D10 | Main Deck Efficiency & Flexibility | 55 | Main Deck is 45 cards, 26 distinct, 24 spells; the 3-copy staples and Foolish Burial Goods overrun the 2-copy legal limit (Verified legality, Inferred efficiency) |
| D11 | Extra Deck Efficiency & Coverage | 40 | Extra Deck runs 18 cards against a 15 cap; two Forbidden Extra cards are included (Verified) |
| D12 | Side Deck Adaptability | 10 | Side Deck has 0 cards, so there is no post-side adaptability (Verified; scored low) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link or dated meta sample; archetype usage stats only (Provisional) |
| D14 | Pilotability & Error Tolerance | 35 | Multi-step engine with several summon routes and S&T placements is hard to pilot consistently (Inferred) |
How the score was computed
Strategy profile: Combo. Structural ≈ 55.8, Going First ≈ 58, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: banlist_exposure (-6); engine_conflicts (-4); extra_deck_over_limit_and_copy_overrun (-2). Final formula: No reliable metagame: 0.80*Structural(55.8) + 0.20*TournamentReliability(42) = 53.0; context modifiers -12 gives 41; Illegal cap applied, final 35 (theoretical/structural-only, not a normal Final score)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.88 · key two-card combo ≈ — · full-brick estimate ≈ 0.12 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Core engine is accessible in most opening hands (about 88% for the 15-copy core)
- Dense searcher text (17 cards) supports consistency
- High closing-power ceiling from 4000 ATK Dragons
- Layered negation and removal text across Main and Extra Deck
Weaknesses
- Illegal in OCG: two Forbidden cards and a Semi-Limited copy overrun
- Extra Deck over the 15-card limit
- Multiple competing engines lower the median and raise brick risk
- No side deck and no post-side plan
- No combo, tournament or guide evidence
Critical choke points
- Crystal Beast monsters being placed in the S&T Zone, which every Ultimate Crystal line depends on
- Rainbow Bridge / Crystal Bond as the only searchers for the key Crystal Beast monsters
- Foolish Burial Goods copy count is illegal, so the legal build cannot run all three
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Crystal Wing Synchro Dragon | a legal card from the same Extra Deck slot | Forbidden in OCG; the deck cannot be legal while it is run |
| 2 | Number 60: Dugares the Timeless | a legal card from the same Extra Deck slot | Forbidden in OCG; the deck cannot be legal while it is run |
| 3 | 1 copy of Foolish Burial Goods | a legal Main Deck card | Run 3 copies against a Semi-Limited limit of 2 |
| 4 | 3 Extra Deck cards to reach 15 | none | Extra Deck is 18 against a 15 cap; choose the least-used Extra Deck cards to cut |
Evidence & confidence
- Verified: Illegal: Forbidden Crystal Wing Synchro Dragon and Number 60 run in the Extra Deck; Foolish Burial Goods run 3 copies against a Semi-Limited limit of 2; Extra Deck has 18 cards against a 15 cap; Main Deck is 45 cards; Side Deck is 0; Card text and stats for all listed cards
- Observed: Archetype usage: 9 of 16 core cards present (56.2%)
- Inferred: P(>=1 core card in opening 5) = 0.88 and P(>=1 Crystal Bond in opening 5) = 0.30; Engine ceiling from card text, not recorded boards; Interaction quality from negation and removal text
- Provisional: Meta Power and D13 matchup fit (no dated metagame sample); Tournament reliability (no tournament link)
- Data gaps: No recorded combo boards, so the floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and per-pilot records are absent No win-rate telemetry for going-first, going-second, matchups, or brick and starter rates No side deck, so post-side performance is unknown Meta Power is Provisional unless a dated metagame sample is supplied Guides count is 0
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