| Fortress Whale's Oath | |
| Type: | Ritual Spell |
| Text: | This card is used to Ritual Summon "Fortress Whale". You must also Tribute monsters whose total Levels equal 7 or more from the field or your hand. |
| Password: | 77454922 |
| Printings |
Speed Duel: Streets of Battle City (SBC1-ENC17) -
2023-08-24 Speed Duel: Scars of Battle (SBSC-EN016) - 2019-08-02 Tournament Pack 7 (TP7-EN011) - 2005-11-01 |