Form Change
Spell Quick

Form Change

  • Archetype:
  • Masked HERO

  • View:
  • 4304




Target 1 "HERO" Fusion Monster you control; return it to the Extra Deck, then Special Summon from your Extra Deck, 1 "Masked HERO" monster with the same Level as that monster's original Level, but with a different name. (This Special Summon is treated as a Special Summon with "Mask Change".)




 
 
AI Power Analysis
ExtenderConfidence: MediumEvaluated Oct 9, 2026
50± 6/ 100
Power Score
Intrinsic 47
Deck 52

Form Change — Power Evaluation

Final Score: 50 ± 6 · Confidence: Medium

  • Intrinsic: 47 · Deck: 52 · Meta: provisional
  • Primary role: Extender · Secondary: Utility

Why it scores here

Form Change does not generate value on its own. It converts a HERO Fusion monster you already control into a Masked HERO of the same original Level, which is a one-for-one swap that extends the Masked HERO line onto the field. The 121-deck sample shows it is a consistent staple in the Heroic family, and the 1.64 average copies per deck and 1-copy majority mean it is cheap to run. It has no combo, interaction, or card-advantage component, and its high deck inclusion reflects Heroic's reliance on it rather than intrinsic strength (guardrail 3).

Axis scores

Axis Score Evidence
Accessibility 62 Quick-Play that needs a HERO Fusion already on the field; present in 121 decks across 19 archetypes, but combos_evidence has 0 appearances, so live-ness is inferred from the text (inferred).
Combo & Conversion 50 The text converts a Fusion body into a Masked HERO of the same Level, a pivot that stays inside the Heroic line; no recorded board confirms its reach (inferred).
Resource Economy 40 A one-for-one replacement with no draw, search, or GY refuel in the text (verified).
Effect & Interaction 8 No negation, removal, or hand-trap effect in the description (verified).
Material Utility 10 A Spell, so it provides no material body of its own (verified).
Resilience & Flexibility 40 Targets a monster you control and can be responded to; flexible across HERO boards but dependent on a Fusion being present (inferred).
Deck-Building Efficiency 70 Runs at 1 to 3 copies with no garnet or lock restriction; 71 of 121 decks run a single copy (observed).

Calculation

Weight profile: Extender profile (primary role only; no secondary blend). Intrinsic ≈ 47, Deck ≈ 52, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Appears in 121 recent decks across 19 archetypes, so it is accessible in practice (observed)
  • Cheap to run: most decks use one copy and it has no garnet restriction (observed)
  • Converts a board Fusion into a different Masked HERO at the same Level, extending the line (verified)

Weaknesses

  • Requires a HERO Fusion monster on the field; no recorded combo shows it as a starter (observed)
  • No card advantage, search, or interaction in its text (verified)
  • Its value depends on Heroic's Fusion engine, so it scores low outside that family (inferred)

Counters / choke points

  • Responded to on activation, which removes the target (inferred)
  • Monster removal or a board wipe on the Fusion before resolution (inferred)

Best use

Extender that swaps a HERO Fusion for a Masked HERO of the same Level. Decks: Heroic, Heros, Masked HERO, Elemental HERO. Suggested copies: 1.

Evidence & gaps

  • Verified: Quick-Play Spell: returns a HERO Fusion you control to the Extra Deck and Special Summons a Masked HERO of the same original Level with a different name (card text); Appears in 121 decks; 71 run one copy, 23 run two, 27 run three (deck stats); Mask Change is the top co-deck partner at 94.2% (deck stats)
  • Observed: Distinct archetypes: 19, with Heroic at 43.8% of decks (deck stats); Three guides mention it, with Heroic and Evil HERO deck lists featuring it (guide evidence)
  • Inferred: Its practical reach depends on a Fusion already being on the field (text plus absence of combo data); Its low interaction and resource scores follow from the text (text reading)
  • Data gaps: no combos supplied; combo conversion is text-only inference no banlist token; assumed 3 copies (unlimited) no usage statistics (StatisticsCard); archetype inclusion inferred from the deck sample only no top-card ranking; accessibility relies on deck evidence alone











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