WATER
4Submarineroid
Archetype:
Roid
ATK:
800
DEF:
1800
View:
3358
This card can attack your opponent directly, but when it does so using this effect, the battle damage inflicted to your opponent is the original ATK of this card. At the end of the Damage Step, if this card attacked or was attacked: You can change this card to Defense Position.
Submarineroid — Power Evaluation
Final Score: 55 ± 8 · Confidence: Medium
- Intrinsic: 55 · Deck: 55 · Meta: provisional
- Primary role: Material body / Normal
Why it scores here
Submarineroid's Level 4 WATER Machine body is its main value: it stays a usable Level 4 material even when its battle clause is irrelevant. It converts into no card advantage, no recursion and no board by itself, so the 800 ATK and the 1800 DEF earn nothing, and the battle-only effect (direct-attack damage equal to its ATK, and a Defense Position change) adds only minor pressure. The score rests on the 89-deck sample across 11 archetypes at about one copy each, which confirms it is a playable generic body. It does not show that it is powerful, because no combo data supports any starter or payoff role.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 40 | 89 decks run it, but the card has no search or searcher route in its text, so reliable access comes only from the deck sample (observed). |
| Combo & Conversion | 20 | Zero recorded combo boards and no combo examples; the battle clause converts only through attacks, so the conversion is text-only inference (inferred). |
| Resource Economy | 20 | The text gives no draw, search, banish or recursion, so the card is a pure body with no advantage return (verified). |
| Effect & Interaction | 15 | The effect is battle-only with no negation, removal or hand-trap reach, so opponent interaction is minimal (verified). |
| Material Utility | 70 | A Level 4 WATER Machine that keeps its level, attribute and race even when its effect is negated, which is a clean generic material fit (inferred). |
| Resilience & Flexibility | 35 | An 800 ATK body with a battle-only effect that dies to ordinary removal, with no recovery or multi-zone effect (inferred). |
| Deck-Building Efficiency | 70 | Ran at 1 copy in 73 of 89 decks (avg 1.22), with no garnet, lock or brick restriction, so it is cheap to run (observed). |
Calculation
Weight profile: Material body / Normal profile, primary role only; no secondary blend. Intrinsic ≈ 55, Deck ≈ 55, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck (decks present, combos absent, meta unknown)
Strengths
- Level 4 WATER Machine body that stays a usable material even when its effect is negated
- Appears in 89 decks across 11 archetypes, which shows it is portable across homes
- Cheap to run: mostly one copy, no garnet or lock restriction
- Clear, low-risk battle clause with no once-per-turn or timing complexity
Weaknesses
- No searcher, recursion or card-advantage route in its text
- Battle-only effect with no negation or removal reach
- 800 ATK body that is easy to remove and offers little board presence
- No combo evidence, so starter and payoff roles cannot be confirmed
Best use
Material body. Decks: Roid-based decks (top co-occurring partners: Super Vehicroid Jumbo Drill, Megaroid City, Expressroid). Suggested copies: 1.
Evidence & gaps
- Verified: Card text: direct attack deals battle damage equal to its original ATK, and it may change to Defense Position at the end of the Damage Step after attacking or being attacked; Level 4, WATER, Machine, 800 ATK / 1800 DEF, Effect Monster; 89 decks run it, 73 at one copy, 0 side-deck copies
- Observed: Co-occurs with Super Vehicroid Jumbo Drill in 96.6% of its decks and with Megaroid City in 92.1%; Spread across 11 archetypes, led by Speedroid (26 decks) and Therions and Kashtira (15 each)
- Inferred: Its main value is as a generic Level 4 material body, since its text gives no search, draw or negation; Its battle clause adds minor pressure and no board conversion
- Data gaps: no combos supplied, so combo conversion is text-only inference no combo as_starter, as_material or as_payoff data no banlist token, so 3 copies (unlimited) is assumed no usage statistics (StatisticsCard), so archetype inclusion is inferred from the deck sample only the single guide mention describes the Roid theme without stating this card's role






