Darkshore Quest "Ending the Threat", in Quest for Undefined.

"Ending the Threat" requires you to speak to the quest NPC "Huntress Sandrya Moonfall" to start an attack on the to be killed NPC "Jor'kil the Soulripper". However, there is no talking option with her, at all, making it impossible to start the event.

Since Jor'kil has a unbreakable shield buff, the quest target is not achievable by workaround, only with the attack event.