Monster - Abyssal Demon

Abyssal Demons are a 124 level NPC found on the third floor of Slayer Tower. They have approximately 1,500 constitution. Abyssal demons are occassionally given out as a Slayer Task. In order to do damage to them, you must have 85 slayer. They have an extremely high drop rate, on almost every item it drops, making them extremely profitable to kill.