Shark Deck #765150 — Yu-Gi-Oh! Duel Links

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±7 · Confidence: Medium)

• Primary strategy: Combo
• Secondary strategies: Midrange, Stun
• Format: duel-links

Legality

Main 20 / Extra 9 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Xyz Summon a Level 5 WATER Xyz (Number C101, Number 101 or N.As.H. Knight) off Shark-family Level 4/5 WATER materials, then close with 2800 ATK boards and Stealth Kragen damage.; Stealth Kragen Spawn and Number 4 remove opposing WATER monsters while the Xyz board pressures the opponent.
• Turn 1 (going first): Open with Dream Shark or Abyss Shark (Special Summon from hand when all your monsters are WATER), search or Normal Summon a second Fish, then Xyz Summon into a Number monster.
• Turn 2 (going second): Use Surfacing Big Jaws or Mulcharmy Fuwalos to draw and build the Xyz board, keep Xyz Block or Xyz Veil up, and force the opponent to spend cards on the board before they can reach a Number monster.
• Recovery: Rebuild from the Graveyard using Xyz Revive Splash, Number C101 and Stealth Kragen Spawn, since several Extra Deck monsters can be Special Summoned from the Graveyard.
• After siding: Not applicable. The deck has no Side Deck and Duel Links offers no sideboarding.

Why it scores here

The deck reliably opens a Shark-family starter: six Dream Shark and Abyss Shark copies give roughly a 58% chance of at least one in a five-card opening hand, and ten Fish starters together push that toward about 78%. Its engine converts into the Extra Deck through Level 5 WATER materials, and the Number monsters (2800 ATK Number C101 and Caesar, plus Stealth Kragen's damage effect) give it real closing power. Interaction is layered across Xyz Block, Xyz Veil, Gazer Shark and the Number removal effects, though there are no hand traps or floodgates. The score does not come from Shark being a popular archetype or from averaging card scores; it comes from the system's consistency, its interaction density and its compact 20-card main. There are no recorded boards, so the floor and ceiling are text-based inference and the score carries a wide band.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 62, Going First ≈ 62, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: engine compactness (2); no sideboard (-2); no hand traps or floodgates (-2); Dark Hole conflicts with own engine (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural = 62.1, TR = 58, modifiers -3 => 58

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.58 · 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

• Six three-copy starters (Dream Shark and Abyss Shark) give about a 58% chance of a live starter in the opening five.
• Ten Fish starters across several names give redundant routes into the Xyz engine.
• Compact 20-card main with a strong 2800 ATK closing set in the Extra Deck.
• Layered interaction across Xyz Block, Xyz Veil, Gazer Shark and Number removal.

Weaknesses

• No hand traps or floodgates, so early interaction is limited.
• Dark Hole and Hey Trunade are situational and can hurt the deck's own board.
• No recorded combos, so the floor and median are unverified.
• No Side Deck and no sideboarding in Duel Links.

Critical choke points

• The Xyz Summon needs a Number monster plus Level 5 WATER materials; if the opponent removes the material monsters early, the board can stall.
• Hand-summoned starters require all monsters you control to be WATER, which can fail when a non-WATER monster is on the field.

Recommended changes

Evidence & confidence

• Verified: Main Deck is 20 cards and Extra Deck is 9 cards, both inside the Duel Links size rules.; All cards are Unlimited except Hey, Trunade! (Semi-Limited, 1 of 2 copies run).; Shark usage stats show the core cards are present in this list.
• Observed: Guide snippets describe the deck's Extra Deck flexibility and Shark's Xyz identity.
• Inferred: Opening-hand starter probabilities (hypergeometric).; Combo ceiling and interaction quality read from card text.; Going-first and going-second estimates.
• Provisional: Meta power and matchup fit, because there is no dated metagame sample.
• Data gaps: no combos supplied; combo floor, median and ceiling are text-only inference no tournament link; archetype meta-share and per-pilot record absent no win-rate telemetry; going-first, going-second and matchup rates unknown Duel Links Skill choice and its effect on the Extra Deck count are not in the evidence Meta Power is Provisional unless a dated metagame sample is supplied