Marmaros dagger

The marmaros dagger is a tier 3 dagger, found only in Daemonheim. It requires level 20 Attack to wield. It can be made from one marmaros bar, requiring level 20 Smithing and giving 28 experience. It is a possible drop from the Luminescent Icefiend, as well as many other monsters.

Dropping monsters
Marmaros dagger