Crystal Beast Deck #705353 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Combo, Toolbox
• Format: ocg

Legality

Main 40 / Extra 5 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Crystal Beast / Ultimate Crystal board of Rainbow Dragon, Rainbow Overdragon or Rainbow Dragon Overdrive, reached through Rainbow Bridge and Crystal Bond searches into the Spell & Trap Zone engine; Crystal Beast beatdown (Topaz Tiger, Amber Mammoth, Amethyst Cat direct attacks) once the field is established
• Turn 1 (going first): T1 Rainbow Bridge or Crystal Bond to put a Crystal Beast into the S/T Zone, Normal Summon a second Beast, then chain Crystal Beast Ruby Carbuncle to revive the S/T-zone Beasts
• Turn 2 (going second): Hold Crystal Miracle or Ancient City - Rainbow Ruins protection while rebuilding the S/T-zone engine through Crystal Promise and Crystal Master's tribute search
• Recovery: Continuous Spell Beasts re-enter from the Monster Zone when destroyed, and Crystal Bond and Rainbow Bridge refill the hand after a board wipe
• After siding: Not evaluable: the export contains no Side Deck cards

Why it scores here

The deck's system is the Crystal Beast Spell & Trap Zone engine: three Rainbow Bridge and three Crystal Bond give it a high probability of a searcher-driven start (P(at least one archetype-core card in a 5-card opening hand) ≈ 0.96, searcher text ≈ 0.94), which is why the consistency and engine-access dimensions score well. Conversion into a board is credible through Rainbow Dragon, Rainbow Overdragon and Rainbow Dragon Overdrive, and the Crystal Miracle and Ancient City protection layer gives the engine some resilience after one interruption. The score is held down by the fact that the list is illegal: two Forbidden cards (Number 60 and Saryuja Skull Dread) occupy Extra Deck slots, the export has no Side Deck, and there are no recorded boards, so the median and going-second dimensions are weakly supported. The score was not produced by averaging card scores or by the archetype's popularity; it is capped at 25 under the illegal-list rule and is theoretical or structural only.

Dimension scores

How the score was computed

Strategy profile: Midrange primary, Combo secondary, not weighted separately; the Midrange profile is used for the structural score. Structural ≈ 56, Going First ≈ 52, Going Second ≈ 48, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-8); no side deck (-4). Final formula: Uncapped: 0.80*Structural(56) + 0.20*TournamentReliability(45) + Modifiers(-12) ≈ 42. Illegal-list cap applied: 25 (theoretical/structural-only). Meta Power provisional/null.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.96 · key two-card combo ≈ — · full-brick estimate ≈ — (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Three Rainbow Bridge and three Crystal Bond give a high chance of a T1 engine start
• Searchers and Beast recursion keep the S/T-zone engine running after a single loss
• Rainbow Dragon and Rainbow Overdragon provide a high-ceiling closing board

Weaknesses

• Two Forbidden cards make the list illegal in OCG
• No Side Deck, so no post-side plan
• No hand traps and no floodgates, so the deck has little answer on the opponent's turn
• No recorded boards, so the median output cannot be checked

Critical choke points

• Rainbow Bridge or Crystal Bond must be drawn to begin the engine
• The Ultimate Crystal Extra Deck monsters need 7 different Beast names in the field or GY, which can be missing after an early disruption

Recommended changes

Evidence & confidence

• Verified: Two cards are Forbidden in OCG and run at 1 copy each, with 0 legal copies (legality); The Main Deck is 40 cards and the Extra Deck is 5 cards, both within OCG size rules (legality); The archetype core is 18 copies, with 96% opening-hand presence (probabilities); Usage statistics show 9 of 16 core cards present (usage_statistics)
• Inferred: P(≥1 starter in 5) ≈ 0.96 gives high engine access (D1); Searcher and recursion density supports refilling (D5, D6); Interaction is in-deck and not on the opponent's turn (D7); The Ultimate Crystal payoff needs 7 Beast names on the field or GY (D3, D14)
• Provisional: Meta Power is null because no dated metagame sample exists; D13 matchup fit is provisional because no tournament or meta data exists
• Data gaps: Combos evidence has 0 parseable 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 exists for this deck (going-first/second, matchup, brick/starter rates) No Side Deck cards in the export, so post-side adaptation cannot be assessed No guides attached (guides_evidence has 0 entries) Deck title is null, so the name is set from the archetype only