WATER
7Mega Fortress Whale
Archetype:
Fortress Whale
ATK:
2550
DEF:
2350
View:
4152
If "Umi" is on the field: You can activate this effect; your WATER monsters can attack directly this turn. During your opponent's Battle Phase (Quick Effect): You can target 1 face-up monster your opponent controls; destroy it. If this card on the field is destroyed by battle or card effect: You can either add to your hand or Special Summon 1 WATER Warrior monster from your Deck or GY. You can only use each effect of "Mega Fortress Whale" once per turn.
Mega Fortress Whale — Power Evaluation
Final Score: 64 ± 6 · Confidence: Medium
- Intrinsic: 62 · Deck: 66 · Meta: provisional
- Primary role: Removal / Negation · Secondary: Recovery/Recursion
Why it scores here
Mega Fortress Whale converts into a Quick Effect that destroys one face-up monster during the opponent's Battle Phase, and when it is destroyed it recovers a WATER Warrior from Deck or GY, so its score rests on removal flexibility and recovered value rather than its 2550 ATK. Its Level 7 WATER Fish body and single-copy cost keep material utility and deckbuilding solid. Accessibility and combo conversion are held back because the evidence records no combos and the Umi clause ties part of the card to the Umi engine; the 400-deck sample confirms it is played, not that it is strong.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 60 | Live in 400 of 400 sampled decks and co-occurs with Umi engine partners at 98-99%, but no searcher or combo route is recorded, so access depends on the Umi engine (observed/inferred). |
| Combo & Conversion | 50 | No recorded combo boards exist; the one-for-one destruction plus WATER Warrior recovery is read from the text alone (inferred). |
| Resource Economy | 62 | Destruction triggers a search or Special Summon of a WATER Warrior, giving roughly a +1 card return when the card is destroyed (verified text, inferred net value). |
| Effect & Interaction | 70 | Strong, flexible destruction of any face-up monster as a Quick Effect in the opponent's Battle Phase, limited to once per turn (verified text). |
| Material Utility | 55 | Level 7 WATER Fish is a clean material body, and its material value persists even if the effects are negated (verified text, inferred use). |
| Resilience & Flexibility | 60 | Recovery still happens when it is destroyed, but the removal window is narrow and the card must be on the field to use it (verified text, inferred). |
| Deck-Building Efficiency | 75 | Single copy in 396 of 400 sampled decks, no garnet or lock restriction, and only a soft Umi condition on one sub-effect (observed/verified). |
Calculation
Weight profile: 0.7 Removal / Negation + 0.3 Recovery/Recursion. Intrinsic ≈ 62, Deck ≈ 66, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Quick Effect destruction of any face-up monster during the opponent's Battle Phase
- Recovers a WATER Warrior from Deck or GY when destroyed, turning removal into a body
- Single copy in 396 of 400 sampled decks, low deckbuilding cost
Weaknesses
- Only usable in the opponent's Battle Phase window and only once per turn per effect
- Part of its value depends on the Umi clause and the Umi engine
- No recorded combo boards to confirm conversion in practice
Counters / choke points
- Negation of the Quick Effect in response
- Removal or bounce of the card on the field before the Battle Phase
- Interaction that prevents the card from being destroyed to trigger its recovery
Best use
Battle-phase removal with WATER Warrior recovery. Decks: Umi, Umi Control, Icejade, Shark. Suggested copies: 1.
Evidence & gaps
- Verified: Quick Effect destroys 1 face-up opponent monster during the opponent's Battle Phase, once per turn per effect; On destruction by battle or card effect, add or Special Summon 1 WATER Warrior from Deck or GY; Umi clause gates only the direct-attack sub-effect
- Observed: Played in 400 of 400 sampled decks, 396 at 1 copy, avg 1.01 copies per deck; Umi archetype in 51.8% of sampled decks; 38 distinct archetypes; Top partners co-occur in 98-99% of decks
- Inferred: Removal is the primary role; recovery is a secondary role; Accessibility depends on Umi engine searchers, since no searcher is recorded; Net card advantage is roughly +1 when destroyed
- Data gaps: No combos supplied: combo conversion is text-only inference No banlist token: assumed 3 copies (unlimited) No usage statistics (StatisticsCard): inclusion % inferred from deck sample only Gameplay type ids are not mapped to a named format