EARTH
11Subterror Behemoth Speleogeist
Archetype:
Subterror
ATK:
3000
DEF:
1400
View:
3274
FLIP: You can target 1 monster on the field; change it to face-up Attack Position if it is in Defense Position, also change its ATK to 0. You can only use this effect of "Subterror Behemoth Speleogeist" once per turn. When a face-up monster you control is flipped face-down, if you control no face-up monsters: You can Special Summon this card from your hand in Defense Position. Once per turn: You can change this card to face-down Defense Position.
Subterror Behemoth Speleogeist — Power Evaluation
Final Score: 52 ± 8 · Confidence: Medium
- Intrinsic: 51 · Deck: 52.4 · Meta: provisional
- Primary role: Removal / Negation · Secondary: Boss / End-board
Why it scores here
The card's value is a once-per-turn flip effect that sets one monster's ATK to 0 and moves it to attack position, plus a conditional Defense-position Special Summon from hand. Its 3000 ATK earns no points by itself. Deck inclusion (55 decks, most in the Subterror home, with Subterror Fiendess in 87% of them) confirms it is a live, practical Behemoth piece, but there is no combo evidence, so combo conversion and the Level 11 summon route are scored from text inference only.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | The Defense-position hand Summon needs a flipped face-up monster and an empty field, and the Level 11 summon route is not stated in the text. Deck inclusion (55 decks, 1.31 copies average) shows the card is reached in practice (observed). |
| Combo & Conversion | 45 | No recorded boards, so the conversion of one flip into a fuller board is text-only inference; the ATK-zero effect is a single soft swing (inferred). |
| Resource Economy | 25 | No draw, search, banish-refuel, or card-advantage wording appears in the description, so this axis stays low (verified). |
| Effect & Interaction | 50 | The flip effect neutralises one monster's ATK and repositions it, which is soft interaction rather than destruction. It is once per turn and needs a flip to be triggered (verified). |
| Material Utility | 40 | Level 11 Fiend Earth is a high-level body with awkward material fit, and no material stats are supplied (inferred). |
| Resilience & Flexibility | 55 | The card can come back from hand after a flip-down and can reset itself to face-down Defense once per turn, giving some multi-zone recovery; both need specific conditions (verified). |
| Deck-Building Efficiency | 50 | Used at about 1.3 copies in an archetype-locked engine, with no garnet or lock text beyond the Subterror home; it is not a splashable card (observed). |
Calculation
Weight profile: 0.7 Removal/Negation + 0.3 Boss/End-board. Intrinsic ≈ 51, Deck ≈ 52.4, Meta = provisional. Modifiers: Archetype-locked engine (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Once-per-turn ATK-zero with forced attack position on one face-up monster
- Hand Special Summon and once-per-turn face-down reset give recovery after a flip-down
- Proven in practice: 55 recent decks, with Subterror Fiendess and Subterror Final Battle in 87% of them
Weaknesses
- Flip- and empty-field-gated; the hand Summon is not reliable
- No recorded combo boards, so conversion is unverified
- ATK-zero is soft interaction, not destruction
- Level 11 summon route is not in the text
- Heavy archetype dependence
Counters / choke points
- No counter or interaction-answer data in the evidence pack; the effect is answerable in principle by anything that stops its flip trigger, but this is inference only
Best use
Flip control and a 3000-ATK body within the Behemoth shell. Decks: Subterror (Behemoth engine), Subterror (ID 176), Greed (ID 1059). Suggested copies: 1.
Evidence & gaps
- Verified: Card text: once-per-turn flip effect (change target to face-up Attack, ATK 0); Card text: hand Special Summon in Defense Position when no face-up monsters are controlled after a flip-down; Card text: once-per-turn change to face-down Defense; 55 recent decks; 1.31 average copies; Subterror Fiendess in 48 of 55 decks
- Observed: Subterror 711 holds 54.5% of decks; Partner rates: Subterror Fiendess 87.3%, Subterror Final Battle 87.3%, Subterror Guru 85.5%; Guide section lists it among Behemoth bosses sharing the same two generic effects
- Inferred: ATK-zero plus position change is soft interaction rather than destruction; The Defense-position hand Summon is situational in practice; Level 11 material fit is awkward; Recovery and reset give moderate resilience
- Data gaps: No combos supplied: combo conversion is text-only inference No banlist token: assumed 3 copies (unlimited) Level 11 summon route is not stated in the card text or the evidence No counter or ruling evidence supplied usage statistics covers one archetype only (Tindangle, 100% inclusion), which is not an independent home signal distinct archetypes = 17 but only 10 archetype rows are listed; the concentration in Subterror limits the generic-utility read