WarframeAlchemyLab ES

The horn of the Mortus Lungfish is ground down into a powder and used by the Ostrons in herbal remedies. Source: Cut from Mortus Lungfish via Fisher Hai-Luk in Cetus (Earth). Catch Mortus Lungfish in Plains of Eidolon ponds at any time of day. Also drops from Thumpers in the Plains of Eidolon.

How to farm it? See the full plan

Stats

Type
Fish Part

Where it drops

Saturn / Variant Team Annihilation Conclave Rot. A 5.53% Saturn / Variant Team Annihilation Conclave Rot. B 5.53%

FAQ

Where does Mortus Horn drop?

The best source of Mortus Horn is Variant Team Annihilation (Saturn), at 5.53% per reward according to Digital Extremes' official drop tables.

Can Mortus Horn be traded?

No, Mortus Horn cannot be traded: you have to earn it in-game.