Trap
NormalFinal Fusion
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During either player's Battle Step, when a Fusion Monster you control battles an opponent's Fusion Monster: Target both those Fusion Monsters; negate the attack, and if you do, each player takes damage equal to the combined ATK of both those Fusion Monsters.
Final Fusion — Power Evaluation
Final Score: 43 ± 8 · Confidence: Medium
- Intrinsic: 42.5 · Deck: 43 · Meta: provisional
- Primary role: Removal / Negation
Why it scores here
Final Fusion converts one specific window, a battle between two Fusion Monsters, into a negated attack. It creates no board, draws no cards, and has no recorded combo role, so the score stays in the low-to-mid range. The symmetric damage equal to the combined ATK of both Fusion Monsters earns no points, because it hurts the controller as much as the opponent and grows with the size of the monsters. The 15-deck sample confirms it is a real generic slot in Fusion-based decks, but that frequency is not treated as evidence of power.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 45 | Appears in 15 of 15 sampled decks at 1.4 average copies, but it is reactive with no search or draw and only usable in one battle window (observed). |
| Combo & Conversion | 10 | Zero recorded combo boards include it, and its text creates no board presence or additional cards (verified). |
| Resource Economy | 25 | One-for-one negation with no draw, search, or graveyard refuel, and the symmetric damage is a cost to the controller (verified). |
| Effect & Interaction | 45 | Negates the attack and targets both monsters, but only when a Fusion Monster you control battles an opponent's Fusion Monster (verified). |
| Material Utility | 0 | It is a trap card, so it cannot be used as material or as a name, level, or attribute provider (verified). |
| Resilience & Flexibility | 35 | Single-use card with one timing window, and an opponent can avoid it by not attacking Fusion into Fusion (inferred). |
| Deck-Building Efficiency | 55 | One slot at 1 to 3 copies with no garnet or lock, but it is dead in boards that do not run Fusion Monsters (inferred). |
Calculation
Weight profile: Primary role Removal / Negation only; no secondary role blended. Intrinsic ≈ 42.5, Deck ≈ 43, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Negates the attack of a Fusion Monster in a Fusion-vs-Fusion battle
- Cheap, single-slot reactive answer for boards running Fusion Monsters
- Appears in 15 sampled decks across 9 archetypes
Weaknesses
- Trigger is narrow: only Fusion-vs-Fusion battles
- Symmetric combined-ATK damage can hurt the controller
- No combo, card advantage, or board contribution
Counters / choke points
- Non-Fusion attacks never trigger it
- Opponent avoids attacking Fusion into Fusion (inferred)
- Negating or removing the attacking Fusion Monsters before the Battle Step (inferred)
Best use
Removal / Negation. Decks: Cyber Dragon, Exosister. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: negates the attack of a Fusion Monster in a Fusion-vs-Fusion battle, targets both monsters, and deals damage equal to their combined ATK to each player; Card type is Trap Card, legal in TCG, OCG and MasterDuel
- Observed: Present in 15 of 15 sampled decks, 9 archetypes, 73.3% in gameplay type 7; Average 1.4 copies per deck, maximum 3, 12 decks run one copy; Top partners Book of Moon and Relay Soul in 7 of 15 decks each
- Inferred: Reactive card: without a Fusion-vs-Fusion battle it does nothing; Symmetric damage makes it a liability when the combined ATK is high; Opponent can avoid it by not attacking Fusion into Fusion
- Data gaps: no combos supplied, so combo conversion is text-only inference no guides supplied no banlist token, assumed 3 copies (unlimited) no usage statistics (StatisticsCard), so archetype inclusion % is inferred from the deck sample only legal_copies is empty for all formats