Old School RuneScape Wiki
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Demon of Balance was removed after an update.
As the contents of this page no longer exist in Old School RuneScape, this article is preserved for historical purposes.

The Demon of Balance was a Guthixian demon who had to be defeated in order to obtain a demon's heart for Kolodion's spell during The Mage Arena II miniquest. In order to summon it, players had to use an enchanted symbol to locate it, similar to using an enchanted key or strange device.

It was replaced by Derwen on an update on February 8th 2018.

It was recommended to keep Protect from Magic active during the entire fight. Even though it was able to hit through it, the damage players took would be halved. If players were assigned a black demon for their Slayer assignment, wearing a slayer helmet (i) was recommended, as the player's attacks would be more accurate.

The demon could only be harmed by the Claws of Guthix spell or the twisted bow. As such, a Guthix staff or void knight mace was required to defeat it if using magic.

If not slain quick enough, the demon would despawn and the player would have to track it again and restart the fight.

If the player slayed the demon as part of a black demon Slayer assignment given by Krystilia, it would not have a chance of dropping a Slayer's enchantment or mysterious emblem.[1]


Item Quantity Rarity GE market price
Demon's heart (balance).png Demon's heart (balance) 1 Always Not sold
Looting bag.png Looting bag 1 Uncommon (1/30) Not sold


  • The quest journal states prior to starting the miniquest "I must be able to defeat multiple level 257 demons", even though they are actually level 202.


  1. Jagex. Mod Ash's Twitter account. 29 November 2017. Mod Ash: "[if assigned black demons by Krystilia, do the new Mage Arena II quest demons have a chance of dropping slayer's enchantment/mysterious emblem?] I don't think so."