Nyxaris will assign you a specific monster to defeat. Once you have slain it, return to Nyxaris to claim your rewards. You will receive Abyssal Gems, and you have a 1% chance to additionally obtain an Abyssal Bag.

• Say task to Nyxaris and choose Killing.
• Defeat the assigned monster.
• Return to Nyxaris with the item to claim your rewards. You will receive Abyssal Gems, and you also have a 1% chance to obtain an Abyssal Bag.

Notes: Missions have a 20-hour cooldown.