WitcherDB
Witcher 3 console commands & item ID database

Fiend

Relicts250 attack damage
Ancient forest and folklore horrors — leshens, fiends and chorts. Relict oil and Igni exploit their fear of fire.

Weakness

As a relict, Fiend takes extra sword damage when your blade is coated with Relict oil.

Loot drops

ItemQtyChance
Fiend eye1–340%
mh107_fiend_dung115%
Fiend mutagen110%
Fifth essence115%
Monstrous brain11%
Monstrous blood1–21%
Monstrous bone1–21%
Monstrous claw1–31%
Monstrous ear1–21%
Monstrous hair2–41%
Monstrous heart11%
Monstrous hide11%
Monstrous liver11%
Monstrous saliva11%
Monstrous tongue11%
Monstrous tooth1–21%

Drop chances are per kill; quantities show the range a single kill can yield.