On Drop Rate
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About On Drop Rate

Hey, I'm Namo, a passionate OSRS player since the game's 2013 release, having run multiple accounts and played through every seasonal game mode along the way.

This vibe-coded project is built and maintained by me (IGN: N A M O). Got a suggestion, or spotted something off? Feel free to message me in-game!

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← All bosses
Grotesque Guardians
Grotesque Guardians
Kills per hour modifier
kills/hour

The Black tourmaline core takes about
20 hours and 50 minutes to obtain if you are exactly on droprate.

Expected kills
500
Expected kills on drop rate
Expected time to obtain
20h 50m
at 24 kills/hour (average)

Loot from 500 kills

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Item Quantity Price (ea) Total value
Total loot value—