Target Restriction
From NsdWiki
Expoint Bonus: 6
As opposed to an Attack Restriction, where you choose a group of people to not attack, a Target Restriction is completely beyond your control. A selected race is inexplicably immune to your magic. No matter how much you try, this incapability of your magic to affect them cannot be explained or removed. Better get used to carrying a backup weapon.
You can take this Fault more than once, each time for a different race.
Requires
The ability to cast spells