Memento Deck #758333 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

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

Legality

Main 57 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Board presence from Memento Extra Deck boss monsters (Mementotlan-Horned Dragon, Mementotlan Twin Dragon, Mementomictlan Tecuhtlica - Creation King) after Memento recursion and searches (Inferred from card text); K9 Xyz pressure (K9-X Werewolf, K9-66X Jacks) through K9-17 Izuna and K9-66a Jokul (Inferred from card text)
• Turn 1 (going first): Open a Memento searcher (Angwitch, Ghattic, Akihiron) or Tatsunootoshigo special summon, then convert the Memento monsters in hand/GY into a Fusion or Extra Deck boss (Inferred)
• Turn 2 (going second): Use hand traps (Ash Blossom, D.D. Crow, Ghost Ogre & Snow Rabbit, Droll & Lock Bird) to disrupt the opponent's engine, then rebuild a board through Memento recursion (Inferred)
• Recovery: Recover from the GY through Mementotlan Bone Party, Mementotlan Goblin, Mementotlan Shleepy and Mementotlan Ghattic effects that re-add or summon Memento cards (Inferred from card text)
• After siding: No side deck is registered (side_count 0), so there is no post-side plan; best-of-3 adaptation is not supported by the list as submitted

Why it scores here

This deck is illegal as submitted: three Semi-Limited/Limited cards are over their copy limits and Called by the Grave (Forbidden) is in the Main Deck, so the score is a structural-only theoretical read capped low. Structurally the Memento core is consistent: the archetype core group gives roughly 98% odds of at least one core card in a 5-card opening hand (Inferred), and 15 searcher-text cards and 11 hand traps support the early game and going-second defence. Its closing power comes from several high-ATK Extra Deck bosses, and its interaction density is real but partly redundant, with eleven hand traps and multiple negation cards. The score does not come from averaging the card scores, from Memento being a popular archetype, or from any recorded combo or win-rate data, since none exists here. Main Deck crowding (14 singleton tech and hand-trap slots), no Side Deck, and the absence of any recorded boards keep the ceiling and reliability modest.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 57, Going First ≈ 55, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: Banlist exposure (-6); No side deck (-3); Illegal cap (-21). Final formula: Illegal deck: pre-cap 0.80*Structural(57) + 0.20*TournamentReliability(45) + modifiers(-9) = 46; capped to 25 as a theoretical/structural-only score (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.98 · key two-card combo ≈ — · full-brick estimate ≈ 0.02 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• High archetype core presence (15 of 25 core cards, about 98% at least one core in hand)
• Layered interaction: 11 hand traps and 8 negation-text cards
• High-ATK Extra Deck bosses for closing (up to 5000 ATK)
• Recovery through several GY-based Memento re-summon and add effects

Weaknesses

• Illegal copy counts on four cards, including a Forbidden card
• No Side Deck
• Low exact-name archetype purity (34.7%) with a wide off-archetype spread
• Heavy singleton tech and hand-trap count raises brick and dead-card risk

Critical choke points

• Reliance on Memento searchers and Fusion/boss summons for the main engine
• Hand-trap density means a single hand is often holding a non-functional interaction card

Recommended changes

Evidence & confidence

• Verified: Four cards exceed legal copy limits (Ash Blossom, K9-17 Izuna, Droll & Lock Bird, Called by the Grave); Main 57 and Extra 15 are within size rules; Side 0 is within 0-15; Archetype core group P(>=1 in 5-card hand) = 0.9765; Boss monster ATK values as listed in the evidence
• Inferred: Consistency and starter access from hypergeometric and archetype core estimates; Going-second hand-trap coverage at 0.74; Functional roles and turn plans from card text
• Provisional: Meta power (no dated metagame sample); Matchup fit (no tournament or matchup data)
• Data gaps: No combos supplied; combo floor, median and ceiling are text-only inference No tournament link; archetype meta-share and per-pilot record are absent No win-rate, going-first/second, matchup or brick telemetry exists in YGOVN Meta Power is Provisional without a dated metagame sample No Side Deck registered