Arzinian Being of Bordanzan

The Arzinian Avatar, which is the avatar of the Arzinian of Bordanzan, is a monster that can only be fought during the Between a Rock... quest in the Arzinian Mine south-west of Keldagrim. He can only be fought if the player has at least 5 gold ore in their inventory (in which case he will be level 125), however his Combat level will decrease to 75 if the player has at least 15 pieces of gold ore. Contrary to popular belief, he is immune to poison.

Contrary to most sources, the Arzinian Avatar will choose the combat style the player is weakest against and will change style if the player changes their combat style e.g. if the player uses melee the avatar will use magic. However this is simple to overcome by using the appropriate Protection Prayer or by using the armour best suited to the avatar's attacks. His name also changes along with his combat style:

He appears to be attacking with Fire Strike when he is the Avatar of Magic, however his attacks are faster than usual.
 * Arzinian Avatar of Magic


 * Arzinian Avatar of Ranging
 * Arzinian Avatar of Strength (Warrior)

Trivia

 * Messages that you receive on-screen while mining gold ore in the mine suggest that the Avatar is enraged by you trying to take the gold from its lair, or that this is simply a front and it knows very well that gold is its weakness.