Strange rock (Agility)

Strange rocks obtained by training Agility are part of the Dahmaroc statue. 2 are required each to complete the statue each week. Strange rocks may be stored inside a statue collection bag.

Obtaining
Completion of the following courses:
 * Gnome Stronghold Agility Course (basic or advanced)
 * Agility Pyramid course (only when retrieving the golden pyramid)
 * Barbarian Outpost course (basic or advanced)
 * Ape Atoll Agility Course
 * Wilderness course
 * Werewolf Agility Course (have to turn in stick)
 * Bandos Agility Course
 * Dorgesh-Kaan Agility Course
 * Brimhaven Agility Arena (only while receiving tickets)
 * Hefin Agility Course

Using either of the Surefooted Auras will help with rock collection by eliminating failure rate passing obstacles.