Watt Deck #758249 — Yu-Gi-Oh! OCG

55 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Mulcharmy Purulia x3, Wattcobra x3. Created Sep 29, 2026 by YGO Mod.

Deck Watt OCG

Created by: YGO Mod (20517634)

Created On: 09/29/2026

 
 


Official AI Deck Power Analysis
MidrangeConfidence: MediumEvaluated Oct 21, 2026
43± 6/ 100
Power Score
Structural 54
Reliability 45
Going First 62
Going Second 60

Deck — Deck Power Evaluation

Final Contextual Deck Power: 43/100 (±6 · Confidence: Medium)

Overall score Value
Structural Deck Power 54.4
Going First 62
Going Second 60
Meta Power provisional
Tournament Reliability 45
  • Primary strategy: Midrange
  • Secondary strategies: Control, Synchro/Link engine
  • Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

  • Win condition: Watt Synchro/Link beaters plus Wattgiraffe/Wattcobra direct attacks (1000-1600 ATK), backed by Wattkingdom's Watt-protection lock; Thunder King, the Lightningstrike Kaiju (3300 ATK, Kaiju Special Summon route) and Link beats from Some Summer Summoner / S:P Little Knight
  • Turn 1 (going first): Open a Watt-named starter (Wattgiraffe, Wattuna, Wattcobra, Wattkingdom) or Mulcharmy draw engine, Normal Summon, and keep Solemn or Forbidden Droplet up to stop the opponent's first real play
  • Turn 2 (going second): Use Solemn Judgment / Solemn Warning / Solemn Accusation and Forbidden Droplet to stop the opponent's board, then rebuild through Pot of Sloth and Mulcharmy draws into a Watt Synchro
  • Recovery: Pot of Sloth and Mulcharmy draws plus the Watt Tuner recursion route; Wattuna is the only tuner for the Watt Synchros, so recovery depends on keeping one alive
  • After siding: No side deck (0 cards). No post-side plan exists in the list; any sideboarding requires the player to build one from outside the submitted deck

Why it scores here

The deck reliably opens a Watt or Mulcharmy starter in about 72% of going-first openers (hypergeometric over the 12 Watt-named main-deck starters, Inferred), so the engine is usually accessible. Its strength is interaction density: six Solemn-family cards, Forbidden Droplet, Ultimate Sky, and several hand traps and board-wipe traps give it strong endboard control (D7 82). Conversion is weaker because the Extra Deck has about six slots that cannot be reliably summoned (Wattchimera x2 and Watthydra by Synchro level arithmetic, Super Starslayer TY-PHON and Divine Arsenal by Rank-12 material requirements), and the Watt Tuner count is only three copies. The score is built from consistency, median output and interaction on the whole system, not from Watt being a popular archetype and not from averaging card scores. With no side deck and no combo or tournament data, the post-side plan, matchup fit and median output stay low-confidence.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 58 P(>=1 of 12 Watt-named main starters in opening 5) ≈ 0.72 going first, ≈ 0.79 in 6; Watt Tuner access P(>=1 Wattuna in 5) ≈ 0.25 (Inferred)
D2 Opening-Hand Quality & Brick Management 45 32 of 55 main cards are Spell/Trap; P(no monster in opening 5) ≈ 0.06 but many non-engine interaction hands with no Watt starter ≈ 0.28; 14 singletons add conflict risk (Inferred)
D3 Combo Conversion & Ceiling 50 No recorded boards; ceiling is text-only: Wattgiraffe/Wattcobra direct-attack effects and Wattkyuki battle-damage loop, with six unsummonable or conditional Extra slots lowering the ceiling (Inferred)
D4 Combo Floor & Median Output 45 No recorded boards; median output depends on whether the Watt starter and Wattuna tuner arrive together, P ≈ 0.10 in opening 5 (Inferred)
D5 Interruption Resilience & Route Redundancy 60 Multiple independent starters (Watt, Mulcharmy draw engine) and redundant interaction give alternate lines after one disruption (Inferred)
D6 Resource Economy, Recovery & Grind 60 Pot of Sloth x3 and Mulcharmy draw effects (6 copies) regenerate cards; Solemn cards and Ultimate Sky spend LP rather than cards (Verified text + Inferred)
D7 End-Board & Interaction Quality 82 Six Solemn-family cards, Forbidden Droplet x3, Ultimate Sky x3, Heavy Storm, Dimensional Barrier, Harpie's Feather Duster, Maxx C, Droll & Lock Bird, Ghost Ogre x2 (Verified text + Inferred)
D8 Going-Second & Board-Breaking Power 68 Going-second hand-6 P(>=1 hand trap) ≈ 0.38; Solemn Judgment, Solemn Warning, Heavy Storm and Harpie's Duster answer boards (Verified text + Inferred)
D9 Offensive Pressure & Closing Power 55 Direct-attack Watt beaters (Wattgiraffe 1200, Wattcobra 1000, Wattkyuki 1600) and Thunder King 3300, but no reliable closing combo without combo data (Verified stats + Inferred)
D10 Main Deck Efficiency & Flexibility 42 55 main cards inside OCG 40-60 limits, but 14 singletons, Anti-Spell Fragrance and Rivalry of Warlords add low-density tech for a 23-monster deck (Verified composition + Inferred)
D11 Extra Deck Efficiency & Coverage 25 Only 8 of 15 Extra cards reliably summonable: Wattchimera x2 and Watthydra fail by level arithmetic, TY-PHON needs Level 12 materials absent from the main deck, Divine Arsenal is conditional on Evilswarm plus battle, and Thunder Dragon Colossus x2 needs a tribute route (Verified levels + Inferred)
D12 Side Deck Adaptability 10 No side deck at all, so no post-side adaptability can be assessed beyond the absence of one (Verified: side_count 0)
D13 Matchup Coverage & Format Fit 50 No tournament link and no archetype meta-share in the export; format fit is Provisional and needs a dated meta sample (Provisional)
D14 Pilotability & Error Tolerance 60 Multiple conditional choices (Solemn LP payments, Colossus tribute route, Watt tuner sequencing) and 32 non-monster cards need several decision points per turn (Inferred)

How the score was computed

Strategy profile: Midrange. Structural ≈ 54.4, Going First ≈ 62, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: Dead or conditional Extra Deck slots (-4); Self-hostile floodgates (-3); Watt Tuner choke point (-2); Banlist exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); 0.80*54.4 + 0.20*45 = 52.5, then modifiers -10 = 42.5 → 43

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.72 · key two-card combo ≈ 0.1 · full-brick estimate ≈ 0.28 (all Inferred)
  • Combo output: best PowerIndex —, median —, board-per-starter —
  • Turn order: 0 going-first lines vs 0 going-second lines

Strengths

  • Very high interaction density: Solemn family x6, Forbidden Droplet x3, Ultimate Sky x3, and several hand traps and board-wipe traps
  • Watt starter access in ~72% of going-first openers, with a Mulcharmy draw engine as a second line
  • Draw/regeneration via Pot of Sloth x3 and Mulcharmy x6
  • Legal in OCG: all restricted cards at legal copy counts

Weaknesses

  • Six Extra Deck slots cannot be reliably summoned (Wattchimera x2, Watthydra by level arithmetic; TY-PHON and Divine Arsenal by Rank-12 materials; Colossus x2 needs a tribute route)
  • No side deck, so no post-side plan
  • Anti-Spell Fragrance and Rivalry of Warlords conflict with the deck's own spells and monster mix
  • Only 23 monsters in 55 main-deck cards
  • No combo or tournament data, so ceiling and median are text-only

Critical choke points

  • Wattuna x3 as the only Watt Tuner for Wattkyuki (P(Wattuna + L4 Thunder in opening 5) ≈ 0.10)
  • Level-4 Thunder non-tuner requirement: only Wattgiraffe and Wattcobra qualify
Priority Remove Add Reason
1 Wattchimera x2, Watthydra, Super Starslayer TY-PHON - Sky Crisis Synchro or Link targets whose levels match the deck's Level 4 Thunder bodies (e.g. Level 8 or 12 Watt Synchros reachable by 4+4 or 4+4+4) or Link monsters with reachable materials Four Extra Deck slots are unsummonable by level or rank arithmetic and cannot contribute to a line.
2 Anti-Spell Fragrance, Rivalry of Warlords A second Watt Tuner or a tuner-recursion card Both floodgates hit the deck's own Spell Cards or monster mix, and the tuner count is a choke point.
3 none A 6-10 card side deck The list has 0 side cards, so there is no post-side plan; this is the single largest gap in D12.

Evidence & confidence

  • Verified: Legal in OCG; 55 main / 15 extra / 0 side within size rules; Restricted cards: 11 Limited at 1 copy, Solemn Warning Semi-Limited at 2; Card text and levels for every card (Wattchimera L6, Watthydra L7, TY-PHON and Divine Arsenal L12); Usage stats: Watt core inclusion 100%, Solemn Judgment 75%, Heavy Storm 75%
  • Observed: Usage stat inclusion percentages across 30 archetype rows
  • Inferred: P(>=1 Watt-named starter in opening 5) ≈ 0.72; P(Wattuna + L4 Thunder) ≈ 0.10; P(no starter) ≈ 0.28; Wattchimera and Watthydra are unsummonable by Synchro level arithmetic (no non-Tuner Thunder monsters at levels 2 or 3 in main); Anti-Spell Fragrance and Rivalry of Warlords are self-hostile against this list; Interaction density scores (D7) and hand-trap access P ≈ 0.38 going second
  • Provisional: Meta Power (no dated metagame sample); Matchup and format fit (D13), no tournament link
  • Data gaps: no combos supplied — combo floor/median/ceiling is text-only inference no tournament link — archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN (going-first/second, matchup, game-level, brick/starter/OTK rates) — those signals are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied Thunder Dragon archetype materials are absent from the main deck, so Colossus x2 relies on the conditional tribute route

More OCG Info

Watt

Watt Breakdown

 
 

 

 

 

 

 

 
 

 

 
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