Spell
QuickThunderforce Attack
Archetype:
Egyptian God
View:
8014
This card's activation and effect cannot be negated. If you control a monster whose original name is "Slifer the Sky Dragon": Destroy as many face-up monsters your opponent controls as possible, then, if you activated this card during your Main Phase, you can apply the following effect. ● Draw cards equal to the number of monsters destroyed by this effect and sent to your opponent's GY, also you can only attack with 1 monster this turn. You can only activate 1 "Thunderforce Attack" per turn.
Thunderforce Attack — Power Evaluation
Final Score: 63 ± 6 · Confidence: Medium
- Intrinsic: 64 · Deck: 67 · Meta: provisional
- Primary role: Board breaker · Secondary: Recovery/Recursion
Why it scores here
Thunderforce Attack converts a Slifer the Sky Dragon board into a mass removal of the opponent's face-up monsters, and in the Main Phase it adds a draw for each monster sent to the opponent's GY. Its activation and effect cannot be negated, which is the main source of its interaction score. The Slifer requirement and once-per-turn limit keep it from scoring higher, and its strong deck presence (228 of 228 decks) is treated as confirmation of access, not of intrinsic power.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 70 | Quick-Play spell, but it needs a face-up Slifer, which appears in 99.1% of decks (observed). |
| Combo & Conversion | 70 | Mass destruction of face-up opposing monsters plus conditional draw; no recorded boards to confirm the conversion (inferred from text). |
| Resource Economy | 80 | Draws one card per opposing monster sent to the GY in the Main Phase, a real advantage gain (inferred from text). |
| Effect & Interaction | 85 | Unnegatable activation and effect that can clear multiple monsters at once, which is hard to play around (verified from text). |
| Material Utility | 5 | Quick-Play spell with no material or level value (verified from text). |
| Resilience & Flexibility | 60 | Unnegatable activation is strong, but the effect depends on one monster that can be removed or negated (inferred from text). |
| Deck-Building Efficiency | 45 | One copy in most decks (avg 1.33), but it is dead without Slifer, so slot cost is moderate (observed and inferred). |
Calculation
Weight profile: 0.7 Board breaker + 0.3 Recovery/Recursion. Intrinsic ≈ 64, Deck ≈ 67, Meta = provisional. Modifiers: Dead without Slifer (-3). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Unnegatable activation and effect
- Can destroy several face-up monsters in one activation
- Draws cards in the Main Phase when opposing monsters go to the GY
- Played in 228 of 228 recent decks, with near-universal Slifer support
Weaknesses
- Dead without a face-up Slifer the Sky Dragon
- Once per turn limit
- Conditional draw only applies in the Main Phase
- No recorded combo boards to confirm real-world conversion
Counters / choke points
- Negating or removing the Slifer the Sky Dragon monster before activation
- Interruptions in response that remove Slifer from the field
Best use
Mass removal with card advantage on a Slifer board. Decks: Egyptian God (Slifer) decks. Suggested copies: 1.
Evidence & gaps
- Verified: Unnegatable activation and effect (card text); Requires a face-up Slifer the Sky Dragon (card text); Once per turn (card text)
- Observed: Slifer the Sky Dragon co-occurs in 99.1% of decks; Thunderforce Attack is in 228 of 228 decks, averaging 1.33 copies
- Inferred: Mass removal conversion value, since no combos are recorded; Card advantage from opposing monsters sent to the GY
- Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited)