The Target is consumed with a lurking urge to destroy those nearest and dearest to their heart, especially the members of their own family. The Target knows exactly where and how far away a blood relation is so long as the Target is on the same Plane, and whenever it sees a member of its family Near it must successfully Contesting Roll against the curse’s DC or be compelled to Attack that family member for 1 minute or until the Target is killed.
On a successful Contesting Roll, the Target is able to overcome the urge to Attack a family member for 24 hours. However, if the Target fails a Contesting Roll against any enchantment or charm effect while a family member is within 60 feet and the Target has line of sight to that person, the Target must safe or be afflicted by the Curse even if it has previously succeeded on a Contesting Roll that day for that family member (it assumes the family member tried to compel it through magic).
If the Target succeeds on its Contesting Roll for three days in a row, the Kinslayer Curse is lifted.
You sense the lurking urge to destroy your loved ones. You know exactly where your family members are on this plane, and seeing one nearby forces you to fight the compulsion to attack them.