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“It's taking longer than I calculated.”
This page is actively being worked on and may not be completely correct. Please assist in making this page accurate.
Confirmation needed on percentages of amalgam transmutation
For LavosIcon272.png Lavos's ability, see TransmutationProbe130xDark.png Transmutation Probe

Combine 4 unranked mods for a chance of a rare mod.
—In-game description

Transmutation is the method of combining unwanted mods and paying credits for a chance to create a more desirable mod. The majority of PvE mods are obtainable through this method. Certain mod classes, such as Corrupted Mods and Event-exclusive mods, cannot be acquired via transmutation.

There is no specific mod combination that produces a certain mod and is purely based on rarity and chance, though polarity and item compatibility are also factors. For example, fusing four Madurai Pol.svg Madurai mods has a higher chance of producing a random Madurai Pol.svg Madurai mod. Similarly, fusing 4 rifle mods will have a higher chance of producing a random rifle mod.[citation needed]

There is also no penalty for fusing the same mod, making the chances of getting a rare mod the same regardless of whether one transmutes four different or identical rares.


Begin by selecting any combination of four unranked mods that you wish to Transmute. You cannot use mods you currently have equipped, Legendary mods, or Set Mods. After an acceptable combination is selected, the Transmute area in the middle of the mod screen will light up, telling you that you are ready to transmute your selected mods. Simply click the illuminated area and then confirm your selection. The cost of Transmutation varies depending on the rarity of mods used. Prices range from Credits64.png 0 to Credits64.png 84,000, with the exception of Riven Mods:

You can mix mods of different rarities to get prices in-between. The end result of the transmutation depends on the collective rarity of mods used. Transmuting four common mods have a chance to produce rarer mods, but less so when compared to transmutations using mods of higher value.[citation needed] For example: combining four different rare mods is costly but yields a greater chance of producing a rare mod from the transmutation. Apart from that, the algorithm of transmutation is completely random — there are no recipes for even the simplest mods.

“It's taking longer than I calculated.”
This page is actively being worked on and may not be completely correct. Please assist in making this page accurate.
More thorough testing is appreciated (especially with transmuting rare mods). If anyone has test results for over 50 transmutations, please contribute. Current numbers are based on watching multiple Youtube videos on rare mod transmutation, sample size 405+.

Disclaimer: The following percentages are contributed by the community. Any differences may be due to random chance. Take these values with a grain of salt.

Combination Chance at Common Chance at Uncommon Chance at Rare Chance at Requiem Chance at Peculiar Chance at Amalgam Chance at Riven
4 Commons 95% 4% 1% 0% 0% 0% 0%
4 Uncommons/
15% 80% 5% 0% 0% 0% 0%
4 Rares/
40% 10% 50% 0% 0% 0% 0%
4 Requiems 0% 0% 0% 100% 0% 0% 0%
4 Rivens 0% 0% 0% 0% 0% 0% 100%

Transmutation Cores[]

Transmutation Cores are special Cores that can be used as an ingredient in Transmutation. When used alongside three other Mods to be transmuted, the Transmutation Core ensures that the resulting Mod will be of matching Polarity listed on the Transmutation Core. Using a Transmutation Core also removes the credit cost for that transmutation, allowing for cheaper attempts at transmuting Rare-quality Mods. Transmutation Cores do not guarantee the rarity of the resulting mod, only their polarity.

Transmutation cores can be acquired from Cephalon Simaris in the relay for ReputationBlackx64.png 5,000.

VazarinTransmuteCore.png NaramonTransmuteCore.png MaduraiTransmuteCore.png
Vazarin Pol.svg Vazarin Naramon Pol.svg Naramon Madurai Pol.svg Madurai

Riven Mods[]

Main article: Riven Mods#Transmutation

Riven Mods can also be transmuted. However, they require the use of Riven Transmuter, a drop from Eidolon Hydrolyst, in order to transmute four unveiled, veiled, or a mix of them to produce one veiled Riven Mod. The resulting Riven Mod will always be of the same type as one of the transmuted Riven Mod. Because of this, if you use four Riven Mods of the same type, you will guarantee a veiled Riven Mod of that type.

Untransmutable Mods[]

Main article: Category:Untransmutable Mods

Mods in the following categories cannot be acquired via transmutation:

In general, mods only obtainable through vendors such as Syndicates, are untransmutable (for example, K-Drive mods).

Certain other mods are untransmutable under no discernable criterion.


Patch History[]

Hotfix 24.2.7 (2018-01-09)

  • Reduced the Standing cost of Transmutation Cores from 10k to 5k.
AladVPortrait d.png
“Ah, have you come to make a donation to my newest 'enterprise'...?”
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Update 9.6 (2013-08-16)

  • Improvements to the Transmutation system: you can no longer transmute your final power card of a given type.

Update 9.5 (2013-08-09)

  • Introduced.