Tonitrus is a Black Steedfleet horse and the first of 2 legendary horse to make an appearance.
- Date born: Unknown
- Status: Alive
- Mates: Fulgetra
- Children: Pluvia, Equinox
- Parents: Unknown
- Siblings: None
- Current Owners: Kentela, Lady
- Past Owners: Raster
Tonitrus was the mount of Raster.
- "Tonitrus" is Thunder in Latin.
- Tonitrus was part of the second world event called "Tonitrus and Fulgetra" where players had to search for the coupled horses.
- Tonitrus is mentioned in Chapter 6.