Ornithosaur Oil
Ornithosaur Oil is a blade oil in The Witcher that raises the damage Geralt deals to ornithosaurs. It is worth applying to the sword before any fight against these creatures, since it does nothing extra against other foes.
Geralt can brew it while meditating at a fire or an inn once he knows the recipe or works it out by experimenting. The formula needs 1 Vitriol, 1 Rebis, 1 Quebrith and 1 Hydragenum on a grease base.
Keep exploring
Plan a Remastered build: skill trees, mutagens, gear and a shareable build image.
Pick a potion, decoction or bomb and see every ingredient you need.
Answer the key choices and find out which Witcher 3 ending you will get.
Every location, quest and monster in the first region on one map.
The Wolf School's hidden valley: the keep, the Bastion, caves and treasure.
Tick off every school gear diagram and crafted piece, with diagram locations.
Search any monster and see the right oil, Signs and bombs.