This is a paid asset, but now you can download Longsword Animset Pro Free.
Detail this asset from Unity Store: Original Link
Longsword Animset Pro v1.0
“If possible, please buy the package to support the developer”
A set of 205 mocap animations for a character armed with a longsword and a character model of a Vampire Knight, made by Kubold.
Update 1 added 65 animations for the sword on the other side of the body – see video
Does not include a controller.
LOD2 – 1757 Poly
LOD1 – 9018 Poly
LOD0 – 24448 Poly
Animations and character are in FBX format, skinned to a HumanIK skeleton. Set up to Humanoid rig. Fully compatible with other Kubold packs.