Trap
NormalSimul Archfiends
Archetype:
Archfiend
View:
5738
This turn, neither player can Special Summon monsters with the same card types (Ritual, Fusion, Synchro, Xyz, or Link) they already control. If you do not control 2 or more of the same card types (Ritual, Fusion, Synchro, Xyz, or Link), all Ritual, Fusion, Synchro, Xyz, and Link Monsters you currently control gain 500 ATK. You can only activate 1 "Simul Archfiends" per turn.
Simul Archfiends — Power Evaluation
Final Score: 53 ± 6 · Confidence: Medium
- Intrinsic: 53 · Deck: 53.8 · Meta: provisional
- Primary role: Floodgate/Control · Secondary: Board breaker
Why it scores here
Simul Archfiends scores on its Extra Deck summon restriction, which applies to both players for one turn, plus a conditional +500 ATK to Extra Deck monsters you control. It is a free-to-run trap with a 1-per-turn limit, so its value comes from disrupting Extra Deck plays rather than from card advantage or board-building. The 400/400 deck presence and the staple partners (Called by the Grave, Droll & Lock Bird, Ash Blossom) show it is a reliable, cheap staple, but that frequency does not earn points by itself (guardrail 3). It has no combo evidence and cannot be used as material, so those axes stay low.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 60 | The card is in all 400 sampled decks at an average of 1.66 copies, but it is a set trap with no searcher in the evidence (observed). |
| Combo & Conversion | 25 | No recorded combos exist, so the card's board-building ability rests on its text alone: it builds nothing on its own (inferred). |
| Resource Economy | 40 | The card is spent for a one-turn effect with no draw, recursion or GY refuel, so it is roughly card-neutral at best (verified). |
| Effect & Interaction | 50 | It restricts Extra Deck Special Summons for both players this turn, which is a floodgate effect that is symmetric and situational rather than a negation (verified). |
| Material Utility | 0 | It is a Trap Card and cannot be used as Link, Xyz, Synchro, Fusion or Ritual material (verified). |
| Resilience & Flexibility | 45 | It is a single-turn set trap that a negate can stop and that does nothing once used, with no multi-zone or multi-turn presence (inferred). |
| Deck-Building Efficiency | 75 | It has no garnet, lock or brick restriction, and its 1-3 copy spread shows it fits into many lists without a heavy slot cost (observed). |
Calculation
Weight profile: 0.7 Floodgate/Control + 0.3 Board breaker. Intrinsic ≈ 53, Deck ≈ 53.8, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Free-to-activate trap that restricts Extra Deck Special Summons for both players this turn
- Conditional +500 ATK to Extra Deck monsters you control when you do not control 2 or more of the same type
- Present in every sampled deck across 102 distinct archetypes, showing a cross-archetype staple role
- No garnet or lock cost; 1-3 copies fit most lists
Weaknesses
- Symmetrical restriction also hurts the controller's own Extra Deck plays
- No combo evidence, so board conversion is unconfirmed
- Cannot be used as material and does nothing as a body
- Set-trap timing means it is only live when drawn and set
Counters / choke points
- Trap or quick-effect negation during the chain (inference; no specific counter in the evidence)
Best use
Extra Deck summon restriction staple used as a floodgate against Extra Deck-heavy opponents. Decks: Labrynth, Archfiend, Fiendsmith. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: both players cannot Special Summon the same Extra Deck types they control this turn; Card text: +500 ATK to Extra Deck monsters if you do not control 2 or more of the same type; Card text: 1 activation per turn; Card is a Trap Card and cannot be material; Present in 400 of 400 sampled decks at avg 1.66 copies, distinct archetypes 102
- Observed: Copy distribution: 236 decks at 1 copy, 65 at 2, 99 at 3; Top partners are generic staples (Called by the Grave 56.5%, Droll & Lock Bird 54.8%, Ash Blossom 47.2%); Gameplay type 7 accounts for 88.8% of sampled decks
- Inferred: The floodgate is most useful against Extra Deck-heavy strategies; Symmetry means it is a situational play rather than a one-sided lock
- Data gaps: No combos supplied, so combo conversion is text-only inference No banlist token; assumed 3 copies (unlimited) Usage statistics cover only one archetype (Magikey, 100% inclusion), so cross-home inclusion is not established Guide snippets do not name this card, so guide evidence is not used for scoring average starter count when present is null, so deck resilience is inferred