| Name | Cooldown | Description | SP | Required |
|---|---|---|---|---|
| Regnal Astra | 2 | Boosts damage by 40% of unit's Spd. (Skill cannot be inherited.) | 500 | Astra |
| This skill can only be equipped by its original unit. | ||||
* Unused restrictions: Cannot use: 
Notes[ | ]
- The Special damage boosting effect of Regnal Astra can be reduced by damage-reduction effects such as
Gust, 
Atk/Spd Excel, and 
Dodge.
- A foe equipped with
Embla's Ward, 
Múspellflame, 
Niðavellir Axiom, 
Gold Perfection, or 
Nine-Realm Pact will neutralize all sources of damage except from Røkkr area-of-effect Specials and the minimum 1 damage from Umbra Burst weapons. - For more information, see Damage calculation.
- A foe equipped with
List of owners[ | ]
| Unit | Skill chain | ||
|---|---|---|---|
 | Night Sky 5  | Astra 5 | Regnal Astra 5 |
 | Night Sky 5 | Astra 5 | Regnal Astra 5 |
 | Night Sky 5 | Astra 5 | Regnal Astra 5 |
In other languages[ | ]
| Language | Name |
|---|---|
| Japanese | 剣姫の流星 |
| German | Streiterin Astra |
| Spanish (Europe) | Estrella fugaz |
| Spanish (Latin America) | Estrella fugaz |
| French | Stellaire royal |
| Italian | Astra regale |
| Traditional Chinese (Taiwan) | 劍姬的流星 |
| Portuguese | Astro régio |