|Release date||12 April 2010 (Update)|
|Combat level||2, 10, 26, 50, 64, 80, 88, 100, 120, 150, 192, 198|
|XP per kill||Varies|
|Examine text||A large and powerful ice creature.|
|Release date||1 June 2011 (Update)|
|XP per kill||Unknown edit|
|Examine text||It is cold and solid. Thok will strap it to Marmaros's leg.|
It primarily attacks with Magic and Ranged. It also has a powerful special attack in which it becomes impervious to damage before causing icicles to fall from the ceiling above the player, constantly doing damage until only a small amount of life points remains. This can be avoided by moving around as the icicles follow behind you.
When the Luminescent icefiend raises it arms and smashes the ground, it is about to use its magic attack. It flings its right fist at players as the ranged attack. These animations are too fast for any prayer switching.
It performs its icicle drop special attack when it has 75%, 50%, 25% and 1 life point remaining. While the special attack is happening, the Icefiend becomes impervious to damage except from the damage received by a Summoning familiar. The special attack will keep hitting until you are almost dead, but it will not kill you. (Note: There is currently a glitch where you can randomly be killed by the attack). Protection prayers do not against this attack.
All damage from the special attack can be avoided as long as you keep moving. Begin moving around when you see the Icefiend encase itself in ice; if you stop at any moment, the ice may catch up with you. It is also possible to be hit by ice that is falling behind your team mates, so be careful not to cross paths.
If you get hit once by the special attack, it is difficult, but still possible to escape the rest of its hits. Click rapidly on an opposite corner while being hit. Only eat food once you are not being damaged by the attack. If you cannot escape the attack, make sure you eat immediately after it ends. A swift follow up attack from the Luminescent icefiend could easily kill you.
Running from corner to corner using the minimap is a good way to dodge the special attack. Walking from one wall to the other at the opposite side of room will usually dodge its special attack with one click, but this does not always work. Rotating the view while clicking in one spot will cause you to run in a circle and evade the falling ice, with less chance of misclicking.
Gorajo summoning familiars are capable of damaging the icefiend even while it is encased in ice, this can be taken advantage of to speed up the battle and bypass the last barrage of icicles entirely.
Off-hand daggers are dropped with the main-hand dagger of the same metal.