Endo

is a form of energy used in the process of Fusion to upgrade the effectiveness of Mods at the cost of increasing their drain. Appearing as a large blue and gold orb, it is commonly dropped by slain enemies, as well as rewarded by a variety of mission types. Endo can also be acquired by dissolving unused Mods in the Orbiter's Mods segment, converting the Mods into set quantities of Endo. Maroo can also extract Endo from Ayatan Treasures at her Bazaar.
==Enemy Drop Quantities==
Endo
Pickup ( Endo)	Endo
Pickup ( Endo)	Endo
Pickup ( Endo)
==Fusion Costs==
Fusion costs to a final mod rank from both mod rank 0 and previous mod rank are show below. Expressing rarity as a number (such as common rarity being 1, uncommon 2 etc.) allows to derive convenient formulas for calculating fusion costs. Also note that these fusion costs apply to these additional mod rarities:
* Uncommon costs apply to Peculiar Mods.
* Rare costs apply to , Riven, Amalgam and Galvanized Mods.
* Legendary costs apply to Archon, Umbra, and Primed Mods (excluding ).
===Total Fusion Cost from Mod Rank 0===
Mod Rarity \ Final Mod Rank	1 	2 	3 	4 	5 	6 	7 	8 	9 	10
Common (1) 	10	30 	70 	150	310 	630 	1,270	2,550 	5,110 	10,230
Uncommon (2) 	20	60 	140	300	620 	1,260	2,540	5,100 	10,220	20,460
Rare (3) 	30	90 	210	450	930 	1,890	3,810	7,650 	15,330	30,690
Legendary (4) 	40	120	280	600	1,240	2,520	5,080	10,200	20,440	40,920
===Incremental Fusion Cost from Previous Mod Rank===
Mod Rarity \ Final Mod Rank	1 	2 	3 	4 	5 	6 	7 	8 	9 	10
Common (1) 	10	20	40 	80 	160	320 	640 	1,280	2,560 	5,120
Uncommon (2) 	20	40	80 	160	320	640 	1,280	2,560	5,120 	10,240
Rare (3) 	30	60	120	240	480	960 	1,920	3,840	7,680 	15,360
Legendary (4) 	40	80	160	320	640	1,280	2,560	5,120	10,240	20,480
==Drop Locations==
==Farming Tips==
These are based on opinions and may not be 100% true. These should be viewed as advice for finding the materials unless proven.
*A fast way to farm is in the Rathuum Arena at Yam or Vodyanoi, Sedna in The Steel Path mode for 2x Mod and Endo drop chance. This may be attempted solo, however it is much faster to farm with a full squad of Tenno that may be formed via Recruiting or Clan/Alliance chat, especially if at least 1 team member has Mod Drop Chance Booster for another 2x increase in Mod and Endo drop chance. Useful frames to increase amount of Endo per minute include with for , for , and with for , yielding upwards of per hour.
*Doing Arbitrations is another way of acquiring large sums of Endo, including tradeable Ayatan Sculptures. With 1 hour of Arbitration and 1 reward every 5 minutes, a player could expect to average per hour (including Ayatan Sculptures, after being filled with Ayatan Stars). Staying longer than one hour or playing a mission with a higher reward frequency than 5 minutes will yield even more Endo on average.
*The daily Sortie Mission is a possible source for Endo since it has a chance to either reward Endo, a tradeable Anasa Ayatan Sculpture ( Endo when filled), a tradeable Legendary Core (worth up to Endo), or a 3 day Mod Drop Chance Booster giving 2x Mod and Endo drop chance.
**While Legendary Cores do not increase your Endo balance, they can be used to maximize any mod eliminating Endo and Credits cost, resulting in a maximum possible saving of for fusing a rank 0 Primed/Umbra Mod.
*Bounties and Empyrean Missions are a possible source of Endo.
**For example, Level 40-60 Cambion Drift Bounty has a 45.45% chance to reward you with on stage 1, 28.57% chance on stages 2 & 3 and 22.22% on stage 4.
**Unwanted salvaged Railjack components from Empyrean missions can be scrapped to gain Endo. (per component, MK I : , MK II : , MK III : )
*Doing the weekly mission from Maroo, for an Ayatan Sculpture, from her Bazaar at Mars. This mission resets every Monday and will show up under Alerts, if available. The different tradeable sculptures awarded for this alert will yield -2,700 Endo when filled with Ayatan Stars. While small in quantity, this method is a guaranteed way to acquire Endo every week that can also be optionally traded away to other players.
*Once every 8 weeks, can be purchased in The Steel Path Honors shop from Teshin in any Relay for 150 .
*The Daily Synthesis Task will reward you with -800 Endo for completion.
*Dissolving unneeded duplicate mods may yield sizeable amounts of Endo.
==Notes==
*Internally game considers Endo a form of "Mod drop" (and not a "Resource drop). Therefore, out of different boosters only the Mod Drop Chance Booster has an effect on the rate of Endo acquisition, and no relay blessing will have any effect.
*The total Endo gain from dissolving a Riven mod is equal to the following formula, rounded down:.
**For example, the value for a max ranked riven rolled 5 times with a Mastery Rank requirement of 13 would be:.
==Trivia==
*Endo replaced the system as of .
==Media==
The Fastest Way to Farm Endo in Warframe - Rathuum Endo Farming Guide
Best Endo Farm 2020 Warframe Endo Farming Guide
==See Also==
*Fusion
*Legendary Core
*Ayatan Sculpture
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