Longclaw is a steel sword in The Witcher 3: Wild Hunt and comes in 2 forms:
Longclaw (crafted)
Crafting Requirements 
Min. Required Level: Journeyman blacksmith
Longclaw (relic)
Longclaw can be found on the body of Morvudd, in the reward chest for Unlucky's Treasure, or as random loot.
Associated quests
Notes
- This sword has its own unique, but unused image in the game files. Many other craftable swords in the game use the starter Witcher's steel sword inventory icon, likely due to oversight, but Longclaw is the only one where both of its versions use the incorrect one.
Trivia
- This sword is named after the bastard sword of the same name from the A Song of Ice and Fire series by George R. R. Martin.