WATER
7Fortress Whale
Archetype:
Umi
ATK:
2350
DEF:
2150
View:
3866
You can Ritual Summon this card with "Fortress Whale's Oath".
Fortress Whale — Power Evaluation
Final Score: 39 ± 8 · Confidence: Medium
- Intrinsic: 37 · Deck: 40 · Meta: provisional
- Primary role: Boss/End-board · Secondary: Material body
Why it scores here
Fortress Whale is a plain Level 7 Ritual body with 2350 ATK and no effect of its own beyond the Ritual Summon condition, so its ATK earns almost nothing. It only reaches the board through Fortress Whale's Oath, which appears in all 4 sampled decks, and it needs Level 7 of tributes in hand or field. Once summoned it is a single vanilla end-board body with no interaction, so the score sits in the low-to-mid 30s. Material value (Level 7 WATER) and the consistent Oath partner keep it from scoring lower.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 40 | Needs a Ritual spell (Fortress Whale's Oath) plus Level 7 tributes; the Oath is in 4/4 decks, but there is no searcher evidence and no combo starts recorded (inferred, observed). |
| Combo & Conversion | 45 | Text only describes a Ritual Summon; it becomes a single large body with no recorded combo boards to confirm more (inferred). |
| Resource Economy | 25 | No card advantage, draw, search or recursion; the Ritual Summon is a one-for-one exchange of tributes for a body (verified, inferred). |
| Effect & Interaction | 5 | The card text has no negation, removal or hand-trap effect of any kind (verified). |
| Material Utility | 45 | Level 7 WATER Fish is a usable material for Level 7 Xyz/Synchro/Link routes in the Umi shell, but no as_material combo data was supplied (inferred). |
| Resilience & Flexibility | 30 | A vanilla body with no protection or recovery; any destruction or bounce ends its board presence, and there is no redundancy (verified, inferred). |
| Deck-Building Efficiency | 35 | Needs the Oath and a tribute-able Level 7 zone, so it is a mild restriction on deck slots, but it is run at only 1-3 copies (observed). |
Calculation
Weight profile: Primary role Boss/End-board, no secondary blend applied (Material body secondary noted for context only). Intrinsic ≈ 37, Deck ≈ 40, Meta = provisional. Modifiers: Ritual dependency on Fortress Whale's Oath (-2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Large 2350 ATK body that can end the board once summoned
- Consistently run alongside Fortress Whale's Oath in all 4 sampled decks
- Level 7 WATER body is usable as Xyz/Synchro material in Umi-style decks
Weaknesses
- No effect beyond the Ritual Summon condition, so its ATK is the only value
- Requires a specific Ritual spell plus Level 7 tributes to reach the field
- Vanilla body with no protection, recovery or interaction
- Its power comes from a single partner card rather than from its own text
Counters / choke points
- Any destruction or bounce effect once it is on the field (inferred)
- Monster removal and tribute-denial effects that stop the Ritual Summon (inferred)
Best use
Single Ritual end-board body. Decks: Umi-style Water Fish decks using Fortress Whale's Oath. Suggested copies: 1.
Evidence & gaps
- Verified: Ritual Monster, WATER Fish, Level 7, 2350 ATK / 2150 DEF; Text: can be Ritual Summoned with Fortress Whale's Oath (no other effect); Fortress Whale's Oath is a top partner in 4/4 sampled decks
- Observed: Appears in 4 recent decks with 1-3 copies (avg 1.5); Spread across 3 distinct archetype labels and 3 gameplay types
- Inferred: Acts as a single end-board body once summoned; Level 7 WATER is usable as Xyz/Synchro material
- Data gaps: no combos supplied, so combo conversion and material usage are text-only inference no guides supplied no usage statistics (StatisticsCard), so inclusion across archetypes is unknown no banlist token, assumed 3 copies (unlimited) no searcher or Ritual-spell evidence for Fortress Whale's Oath






