WATER
8Masked HERO Acid
Archetype:
Masked HERO
ATK:
2600
DEF:
2100
View:
5455
Must be Special Summoned with "Mask Change". When this card is Special Summoned: Destroy as many Spells and Traps your opponent controls as possible, and if you do, all monsters they control lose 300 ATK.
Masked HERO Acid — Power Evaluation
Final Score: 63 ± 5 · Confidence: Medium
- Intrinsic: 67 · Deck: 62 · Meta: provisional
- Primary role: Board Breaker · Secondary: Removal, Material body
Why it scores here
Masked HERO Acid is a reliable going-second disruption piece for HERO archetypes with strong access (95.2% of decks run Mask Change as the summoning cost, appearing across 29 distinct HERO variants). Its effect—destroying opponent Spells and Traps while reducing all their monsters by 300 ATK—provides flexible board interaction. However, the card only generates value once on special summon; it does not extend into additional plays or generate card advantage. Combo evidence is extremely limited (1 recorded combo, power index 38), preventing verification of its true role as a payoff or deck driver.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 70 | Requires Mask Change (95.2% co-deck rate in HERO) and a HERO sacrifice; runs in 400/400 sample decks and appears across 29 distinct HERO archetypes, indicating strong reliable access (verified). |
| Combo & Conversion | 45 | Appears in only 1 combo with power index 38 and no marked role in board or disruption; converts only via its summon effect (S/T wipe + ATK reduction) with no extension into further plays (observed). |
| Resource Economy | 50 | Costs Mask Change + 1 HERO sacrifice (−2 resources) for one-time S/T destruction and ATK reduction; recorded combo shows 0 net card advantage, breaking even roughly (observed). |
| Effect & Interaction | 75 | Destroys all opponent Spells and Traps (hard removal) and reduces all opponent monsters by 300 ATK; strong flexible disruption, though ATK reduction is modest and only lasts until turn end (verified). |
| Material Utility | 45 | Level 8 Fusion body (2600 ATK, WATER, Warrior) can serve as tribute or Link material after resolution, but Masked HERO decks rarely reuse Fusions for further synergy; limited material value within archetype (inferred). |
| Resilience & Flexibility | 55 | Effect resolves on summon only—a one-time play vulnerable to summon-timing negates; once on field becomes a 2600-ATK body with no ongoing value or multi-turn disruptive presence (inferred). |
| Deck-Building Efficiency | 80 | Runs 1.06 copies avg (mostly 1-of); clean splash across all HERO variants; no garnet risk; Mask Change is archetype core rather than deckbuilding cost (verified). |
Calculation
Weight profile: Primary role: Board Breaker. Intrinsic ≈ 67, Deck ≈ 62, Meta = provisional. Modifiers: Thin combo evidence (-2); High archetype portability (1). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Strong S/T board wipe—hard removal is consistently valuable against established boards
- Excellent access: Mask Change 95.2% co-deck rate, core to all major HERO variants
- High portability: runs across 29 distinct archetypes (Heroic, Vision HERO, Elemental HERO, Destiny HERO, etc.)
- Clean deckbuilding: 1.06 avg copies (mostly 1-of), no garnet risk, supported by archetype core
- Going-second efficiency: disrupts opponent's spell/trap setup after they establish position
Weaknesses
- One-time effect on summon: generates disruption only once, no ongoing value or multi-turn presence
- 300 ATK reduction is modest and temporary (lasts until turn end only)
- Fusion body is terminal in HERO archetype: limited material reuse for further synergy
- Vulnerable to summon-timing negates (Infinite Impermanence on Mask Change, Solemn Judgment on summon)
- Combo evidence extremely sparse (1 combo, power index 38) prevents verification of true payoff status
- Requires established HERO deck setup—not a standalone play
Counters / choke points
- Negate Mask Change before summon (Infinite Impermanence, Solemn Strike, Solemn Judgment)
- Bounce or remove Acid after summon (Swordsoul Strategist Longyuan, Forbidden Droplet, Red-Eyes Fusion)
- Use decks with minimal Spells/Traps to reduce board wipe value
- Chain negation effects after summon resolves to block ATK reduction
Best use
Going-second board disruptor and S/T removal. Decks: Heroic (primary: 71.5%), Vision HERO, Elemental HERO, Destiny HERO. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: Special Summon only via Mask Change; destroy opponent S/T on summon; reduce all opponent monsters by 300 ATK; Appears in 400/400 decks (100% of HERO sample); Mask Change co-deck rate: 95.2%; Distinct archetypes: 29 (high portability across HERO variants); Copies per deck: avg 1.06, range 1–3 (mostly 1-of); Primary home: Heroic (71.5%, 286 decks)
- Observed: Appears in 1 recorded combo with power index 38 (low-to-mid value); Combo net card advantage: 0 (one-for-one resource trade); Runs across 29 distinct HERO archetypes; Top partners: Mask Change, Stratos, Shadow Mist, Polymerization, Miracle Fusion
- Inferred: S/T destruction value is situational (depends on opponent setup); Going-second play (best used after opponent establishes board); One-time summon effect limits resilience to summon-timing negates; Fusion type limits material reuse within HERO gameplan; Combo role is moderate (appears as output, not primary driver of the line)
- Data gaps: Combo evidence critically thin (1 combo only) prevents reliable deck-synergy scoring Guide mentions minimal (1 guide, brief snippet) No banlist restriction data (assumed unlimited) No top-card ranking provided (not a competitive staple by that metric) Usage statistics show only 1 archetype (Neo-Spacian) while deck evidence shows 29 archetypes—data scope mismatch