There are DCS2 and Spellfire compatible versions.
DCS2 ver. should also compatible with similar combat systems like CCS, LCK, WARPS, etc...but I didn't tested them all, so please try free DEMO sword which can be found at my store in world first to see the compatibility.
Sadly, he left the SL long ago, so these animation is now only available from YABUSAKA.
free DEMO swords also contains same animations and scripts, so feel free to try.
You will love the animations!
DCS2 ver. of the sword contains more animations, so if you don't have any preference, get the DCS2 ver.
These swords are pretty much safe for the one not wearing a certain combat meter and good to have it just for fashion as well.