Molt Efficiency

Molt Efficiency
Tradeable
📝 Update Infobox Data
Max Rank Description
While Shields are Active Gain 6% Ability Duration per second, up to a maximum of 36%
General Information
Type	Warframe
Rarity	Rare
Refreshable	✔️
Incompatibility Tags	OPERATOR_SUIT
Max Rank	5
Arcanes Required to Max	21
Dissolution	22
Trading Tax	8,000
Introduced	Update 31.5 (2022-04-27)
Vendor Sources
Vendors Cavalero (Rank 3: Guardian)  7500 for x1
Official Drop Tables
https://www.warframe.com/droptables

Molt Efficiency is an Arcane Enhancement for Warframes that grants additional Ability Duration over a period of time while Shields are active.

Effect

Rank	% Duration per second	Max % Duration
0	1	6
1	2	12
2	3	18
3	4	24
4	5	30
5	6	36

Acquisition

Molt Efficiency can be purchased from Cavalero for 7,500 Standing 7,500, requiring Rank 3 - Guardian with The Holdfasts. It can also be dropped by Thrax Centurion, Thrax Legatus, and Void Angels on the Zariman Ten Zero.

Item	Source	Chance	Expected	Nearly Guaranteed
	Thrax Centurion	0.33%	~ 299 Kills	2067 ± 689 Kills
	Thrax Legatus	0.33%	~ 299 Kills	2067 ± 689 Kills
	Void Angel	1.67%	~ 59 Kills	410 ± 136 Kills
	Ravenous Void Angel	0.67%	~ 149 Kills	1032 ± 344 Kills

All drop rates data is obtained from DE's official drop tables. See Mission Rewards#Standard Missions for definitions on reward table rotations.
^{For more detailed definitions and information, visit here.}

Farming Tips

• Thrax enemies are abundant in Mobile Defense and Void Cascade missions.
• The Zariman Arcane drop is considered as a mod drop, and is thus affected by The Steel Path and Mod Drop Chance Booster.

Notes

• Duration bonus is additive to Ability Duration mods.
• When all shields are lost, any accumulated bonus is lost.
  • Once shields begin replenishing, the duration bonus starts accumulating again.
• Naturally,  Nidus,  Inaros, and  Kullervo do not benefit from this Arcane as they do not deploy Shields.

Tips

• An ability with refreshable/extendable duration, such as  Splinter Storm and  Lasting Covenant, highly benefits from Molt Efficiency as the duration bonus upon cast will always be retained, even when the Arcane buff is temporarily disabled by losing Shields.
• The duration bonus accumulates during the mission entrance cinematic when loading into a mission from the Orbiter. Not skipping this cinematic will guarantee the maximum duration bonus at the start of the mission.

Patch History

Update 32.1 (2022-11-02)

• Fixed your Warframe’s Ability Duration stat increasing every time you mouse over it in the Helminth UI while Molt Efficiency is equipped (UI only issue, did not impact in-mission).

Hotfix 31.6.4 (2022-07-14)

• Also fixed the Molt Arcanes and Arcane Pulse not indicating that they will give an extra Warframe revive at Rank 3 and up.

Update 31.5 (2022-04-27)

• Introduced