Living rock patriarch

Living rock patriarchs are huge creatures that randomly spawn in the Living Rock Caverns. They were released along with the Living Rock Caverns on 17 September 2009. When a patriarch appears, any player around the area can attack it, but since the cavern is a single-combat area only one player can fight it. Protect from Melee is recommended, but they are not very powerful for their combat level and a high-leveled player with good armour can easily kill it without any food or prayer. When slain, the patriarch drops its entire drop table (which consists of four items) at once. Despite common belief, their spawn is not triggered by killing living rock creatures, but rather the amount of people in the world. They spawn randomly every hour or so, tending to appear in the southwest, southeast, and northeast corners of the cavern.

100% Drops

 * 3 Runite ore (noted)
 * 8 Uncut diamond (noted)
 * 125 Blood runes
 * 125 Mud runes

Trivia

 * The word 'patriarch' means 'father-ruler.'
 * A single, 100% chance drop from these monsters is worth in excess of 200k! So, as anyone can easily notice, killing these is extremely good money making!