EARTH
7Subterror Behemoth Umastryx
Archetype:
Subterror
ATK:
2000
DEF:
2700
View:
3485
FLIP: You can target 1 monster your opponent controls; banish it. You can only use this effect of "Subterror Behemoth Umastryx" 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 Umastryx — Power Evaluation
Final Score: 55 ± 6 · Confidence: Medium
- Intrinsic: 54 · Deck: 56 · Meta: provisional
- Primary role: Removal / Negation
Why it scores here
Umastryx earns its score from a once-per-turn FLIP effect that banishes one opponent monster, which is soft removal that needs a flip to activate. Its hand Special Summon and its once-per-turn return to face-down Defense give it some recovery after a flip, but the hand route is conditional on having no other face-up monsters. Its 2000 ATK and 2700 DEF earned no points, and the Level 7 body is only a modest material asset. The 395-deck sample and the Subterror partners confirm it is a real, consistently run piece of its archetype rather than a forgotten pick, but that frequency is not counted as power.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | The card is in all 395 sampled decks and has a conditional hand Special Summon after a flip, but no combo starter or search data exists to confirm how live it is in opening hands (observed for deck presence, inferred for hand route). |
| Combo & Conversion | 35 | No recorded boards exist, so conversion rests on the text alone: one flip banish plus a body, with no evidence of a multi-card line (inferred from text). |
| Resource Economy | 45 | The FLIP banish is a one-for-one removal with no draw, search, or recursion beyond the hand revive, so the economy is roughly even (verified from text). |
| Effect & Interaction | 55 | The banish hits one opponent monster once per turn, but only as a flip effect, which makes it soft and timing-limited (verified from text, with timing limits inferred). |
| Material Utility | 45 | A Level 7 EARTH Reptile is a usable material body and keeps its 2000 ATK when its effect is negated, though it is not a clean generic fit (verified from card data, inferred for material fit). |
| Resilience & Flexibility | 55 | It can be flipped back to face-down Defense once per turn and re-Summoned from hand after a flip, which gives some reuse across turns, but one negate on the flip trigger ends the effect (inferred from text). |
| Deck-Building Efficiency | 70 | It is run as a single copy in 361 of 395 decks (avg 1.1 copies) with no garnet or lock restriction, so it is cheap to run (observed). |
Calculation
Weight profile: Primary role Removal/Negation only; no secondary blend applied. Intrinsic ≈ 54, Deck ≈ 56, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Once-per-turn FLIP banish answers one opponent monster (verified from text)
- Present in all 395 sampled decks, mostly Subterror archetype lists (observed)
- Hand Special Summon after a flip of a face-up monster, with no other face-up monsters (verified from text)
- Run as a single copy in most decks, so it is cheap to include (observed)
Weaknesses
- Removal only activates as a flip effect, so it is soft and timing-limited (inferred from text)
- Hand Special Summon requires no other face-up monsters you control (verified from text)
- 2000 ATK and 2700 DEF earn no points on their own (guardrail 1)
- No recorded combo boards to show what it converts into (data gap)
Counters / choke points
- Negating the FLIP effect activation, since the banish needs a flip to resolve (inferred, generic)
Best use
Flip-control removal with a hand revive after a flip. Decks: Subterror (archetype 711), Subterror (archetype 176), Subterror (archetype 113). Suggested copies: 1.
Evidence & gaps
- Verified: FLIP: once-per-turn banish of 1 opponent monster (card text); Hand Special Summon in Defense Position when a face-up monster you control is flipped and you control no face-up monsters (card text); Once per turn: change to face-down Defense Position (card text); Level 7 EARTH Reptile, ATK 2000 / DEF 2700 (card data); Present in 395 of 395 sampled decks (deck data)
- Observed: Single copy in 361 decks, avg 1.1 copies (deck data); Subterror partners appear in about 94% of decks (top partners); Guides describe the shared Behemoth flip and revive effects as expanding the board through Fiendess and Guru (guide data)
- Inferred: Flip-only activation makes the banish timing-limited and easier to interact with; Hand revive is conditional, so it is not a reliable opening-hand line; Level 7 body is a usable but not clean generic material
- Data gaps: no combos supplied: combo conversion is text-only inference no banlist token: assumed 3 copies (unlimited) legal copies is empty for all formats no usage statistics (StatisticsCard): archetype inclusion % inferred from deck sample only no rulings supplied for flip timing and hand revive interactions






