From the Galactic Civilizations Wiki
This ability will give a race's ships stronger defenses against enemy ships.
- Advanced (+10%) cost: 1 pt.
- Gifted (+20%) cost: 2 points
- Master (+30%) cost: 3 points
Note
Usefull in DL, very usefull in DA up to version 1.6 with the new combat model, and until developers change it again. ;-)
