WATER
4Monster Arms of Atlantis
Archetype:
Atlantis, City of the Sea Dragon
ATK:
1500
DEF:
1200
View:
603
This card's name becomes "Umi" while on the field. You can only use each of the following effects of "Monster Arms of Atlantis" once per turn. If this card is Normal or Special Summoned: You can target 1 monster that mentions "Atlantis, City of the Sea Dragon" in your GY; Special Summon it in Defense Position. When your opponent activates a monster effect (Quick Effect): You can banish this card from your field or GY, and send 1 face-up "Umi" you control to the GY; negate that activated effect.
Monstrous Arms of Atlantis — Power Evaluation
Final Score: 56 ± 6 · Confidence: Medium
- Intrinsic: 55 · Deck: 57 · Meta: provisional
- Primary role: Removal / Negation · Secondary: Recovery / Recursion
Why it scores here
The card's value is a once-per-turn Quick Effect that negates a monster effect by banishing itself from the field or GY and sending a face-up Umi, plus a once-per-turn Special Summon of an Atlantis-referencing monster from the GY. It is a live negation only when Umi is already on the field and it is not a hand card. Its 1500 ATK and Level 4 body earn little on their own, and the 89-deck presence confirms it is a consistent include in Umi, Atlantean and Mermail lists rather than proving it is strong.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Not hand-accessible; it is live only once on the field or GY, with 89 of 89 decks running it at 1.33 copies on average (observed). |
| Combo & Conversion | 35 | No recorded boards, so the GY revival and negate are text-only conversion with no measured power index (inferred). |
| Resource Economy | 40 | The negate is a self-banish plus Umi send cost, and the GY revival returns one body, roughly even at best (inferred). |
| Effect & Interaction | 55 | Negates monster effects only, requires a face-up Umi, and is once per turn, so it is soft interaction (verified). |
| Material Utility | 45 | A Level 4 Water Sea Serpent body that changes its name to Umi on the field, usable as a generic Level 4 material when blanked (verified). |
| Resilience & Flexibility | 55 | Works from both field and GY across two once-per-turn effects, but depends on Umi being present (inferred). |
| Deck-Building Efficiency | 75 | Mostly one copy per deck, no garnet, and the banlist token is absent so 3 copies are assumed (observed). |
Calculation
Weight profile: 0.7 Removal/Negation + 0.3 Recovery/Recursion. Intrinsic ≈ 55, Deck ≈ 57, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Quick-effect monster negation that can also be used from the GY
- Once-per-turn GY Special Summon of an Atlantis-referencing monster adds a recursion route
- Near-free to run at one copy across 89 decks with 10 distinct archetypes
Weaknesses
- Needs a face-up Umi on the field to activate its negate
- No combo evidence, so conversion to a board is unmeasured
- Negates monster effects only, not spells, traps or card effects
Counters / choke points
- Opponent's monster effects that are not affected by negation
- Board wipes that leave no Umi on field
- Floodgates or Umi-name conditions that block the negate
Best use
Monster-effect negation and GY recursion utility. Decks: Umi, Atlantean, Mermail, Deep Sea. Suggested copies: 1.
Evidence & gaps
- Verified: Level 4 Water Sea Serpent, 1500/1200, Effect Monster, formats TCG and OCG; Quick Effect negate of monster effects by banishing from field or GY and sending a face-up Umi; Two effects, each once per turn; GY Special Summon of an Atlantis-referencing monster in Defense Position; Name becomes Umi while in the Monster Zone; Appears in 89 decks, 10 distinct archetypes, 97.8% gameplay type 7
- Observed: Copies per deck average 1.33, 60 decks at 1 copy and 29 at 2; Partners Atlantis, City of the Sea Dragon and Advent of Atlantis appear in 100% of decks; usage statistics: Deep Sea 60% inclusion, Umi 42.9% inclusion, typical copies 1
- Inferred: Negation is not reachable from hand, so accessibility depends on prior summon or GY recursion; Umi-name requirement limits negate availability to Umi-heavy boards; Deck-level synergy and resilience scores are inferred from partner and archetype spread, since no combo or starter counts exist
- Data gaps: no combos supplied, so combo conversion is text-only inference no guides supplied no banlist token, so 3 copies (unlimited) assumed no rulings supplied for the Umi name change and cost interaction average starter count when present unavailable, so deck resilience is inferred