Register a total of 1 unique item in the Asgarnia and Misthalin section of your Slayer collection log ZD7Z

Click on your task's drop-down menu. The four items shown here can complete your task. It's up to you which one to go for and which combat style (you have access to) to use. The number in the parenthesis is the Slayer level required to harm the monster that drops the item. In the KC field, you can enter the # of kills it took you to obtain the unique. You can track the number of bones you get through RuneMetrics or your experience gain. Speaking of bones, you're allowed to bury them as you obtain them. You can also bank them to use at an Altar or the Ectofunctus.