The Mastercrafted Feline steel sword is a part of the Cat School Gear in The Witcher 3: Wild Hunt. The diagram can be obtained in the quest Scavenger Hunt: Cat School Gear, along with the rest of the diagrams for this set. Requires Level 34 to wield.
The sword can be crafted using these items:
- 1 x Superior Feline steel sword
- 2 x Leather straps
- 2 x Dimetrium ingot
- 1 x Flawless ruby
- 1 x Monster bone
- ?? and the master blacksmith