Supremus

Supremus are powerful slayer monsters, requiring 90 Slayer to fight. Described as a 'demon', so you can tell it can prove to be a worthy foe, it is a member of the Elite Order of Ascension. As with other members of the Elite Order of Ascension, the Supremus are located in the second floor of the Monastery of Ascension. They can only be assigned by Radiver as a slayer assignment.

The Supremus use a ranged attack capable of dealing over 900 damage on a player and can hit through a players prayer, so without at least level 75+ armor (e.g Abyssal armor), the player would need to bring a lot of high-level food.

It has a Special ability in which it spits out four spikes towards the player, ignoring prayer and armor and dealing a maximum damage of 500+, so if the player is extremely unlucky, this attack will deal 2000+ damage. However, the creature rarely uses this special attack.