| Type | Icon | Name | SP | Required | Description |
|---|---|---|---|---|---|
| A | 
|
AR-D Spd/Def 1 | 60 | — | If defending in Aether Raids, grants Spd/Def+X during combat. (Calculates X based on number of your defensive structures: ≥5 structures grants +4; 4 grants +3; 3 grants +2; ≤2 grants +1. Destroyed defensive structures are not counted.) |
|
AR-D Spd/Def 2 | 120 | AR-D Spd/Def 1 | If defending in Aether Raids, grants Spd/Def+X during combat. (Calculates X based on number of your defensive structures: ≥5 structures grants +7; 4 grants +5; 3 grants +3; ≤2 grants +1. Destroyed defensive structures are not counted.) | |
|
AR-D Spd/Def 3 | 240 | AR-D Spd/Def 2 | If defending in Aether Raids, grants Spd/Def+X during combat. (Calculates X based on number of your defensive structures: ≥5 structures grants +10; 4 grants +7; 3 grants +4; ≤2 grants +1. Destroyed defensive structures are not counted.) | |
| No restrictions. | |||||
Notes
- The stat increase that can be applied by AR-D Spd/Def is considered a temporary buff.
List of owners
| Unit | Skill chain | ||
|---|---|---|---|
 | AR-D Spd/Def 1 5  | AR-D Spd/Def 2 5 | AR-D Spd/Def 3 5 |
In other languages
| Language | Name |
|---|---|
| English (US) | AR-D Spd/Def |
| Japanese | 速さ守備の防城戦 |
| German | ÄR-V Ges./Ver. |
| Spanish (Europe) | AE (D) Vel/Def |
| Spanish (Latin America) | AE-D Vel./Def. |
| French | RC-D Vit/Déf |
| Italian | Vel/Dif BE (D) |
| Traditional Chinese (Taiwan) | 速度防守的守城戰 |
| Portuguese | IE-D Vel./Def. |