Base.
I used these as a base for the coral overgrowth.
I referenced roots overgrowth as well as red coral texture to give the swords and daggers a more corrupted feel. The red flesh/ coral texture suggests the overgrowth as it almost spreads around the weapons.
3D Model (Credit: Alexander Rebik)
Thrasuden Weapons Concept 2
Here are another set of variations of weapons for Thras.