Magma mutagen

Magma mutagen
Released							30 April 2015 (Update)
Members							Yes
Quest item							No
Properties
Tradeable							No
Equipable							No
Stackable							No
Destroy							Drop
Examine							Triggers mutation in a serpentine helm.
Values
High alch							5,700 coins
Low alch							3,800 coins
Store price							Not sold
Weight							0 kg

Magma mutagen? (edit)? (edit)30 April 2015 (Update)? (edit)YesTriggers mutation in a serpentine helm.NoNoNoYesYesNoNoNoDropNot sold95009,500 coins? (edit)Magma mutagen0Not soldNo data to display--true0.65,700 coins3,800 coins57000 kg01320113201? (edit)Versions: 0

High Alchemy value: 5700Weight: 0Value: 9500Is members only: trueItem ID: 13201

A magma mutagen is an untradeable item dropped by Zulrah. It allows a player to cosmetically recolour their serpentine helm to a magma helm. The mutagen is consumed upon use.

Drop sources

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Source	Level	Quantity	Rarity
Zulrah	725	1	1/13,159

Drop rate

The drop rate for this item is calculated from three different rolls: the chance of missing the unique drop table (255/256), the chance of rolling Zulrah's flax table (10/249) and the chance of rolling the mutagen table (20/5,264). Both mutagens are equally likely.

Thus, multiplying these three fractions will result in ~1/6,579.4, which is Zulrah's chance of dropping a mutagen, or a ~1/13,158.8 chance for a specific mutagen.

However, since Zulrah gives two rolls to its drop table per kill, the chances are roughly doubled, giving a ~1/3,289.9 chance for any mutagen or a ~1/6,579.6 chance for a specific mutagen.

Changes

Date	Changes
22 November 2018 (update)	The drop rate was slightly lowered from 1/6,553.9 per kill as crushed nests were removed from Zulrah's drop table, due to changes in how the drops are now rolled.

References

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