- This card is named and based after both X Revolver Dragon, and Ryusei Kaiser, the Victorious.
- As Diehard Ryusei of Invincibility evolves directly into Meteorite Ryusei the Flash in the background story, it is unknown what relations this creature has with the original Ryusei. It might be another person who has no relations with the background story.
- It is the only Ryusei creature which is not a Dragon.
| Ryusei, Ex Revolver |
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