When shown to Terry Balando, he says, "Look at this... Interesting.,. This appears to belong to a cleric of some kind; certainly not a follower of Saradomin. However, I wonder if there was another civilisation here before the Saradominists."
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Profit analysis
Considering the Grand Exchange values and probabilities of obtaining each staff, repairing a Broken staff will on average yield 359.00. Thus repairing broken staves is hardly worth it even in bulk.
References
^Jagex. Mod Ash's Twitter account. 31 December 2021. Archived from the original on 5 December 2022. Mod Ash: "[Never change <3 Is it Smithing that affects the chance of destroying a rusty sword and scimitar, and broken and damaged armour? Is it Fletching that affects the chance of destroying a broken arrow? Is it Crafting that affects the chance of destroying a broken staff?] I see you didn't change either :P Yes, yes and yes."
^Jagex. Mod Ash's Twitter account. 13 February 2019. Archived from the original on 27 May 2020. Mod Ash: "5% staff of water
4% staff of fire
4% staff of air
4% staff of earth
26% "magic staff"
57% basic staff"