You would need some HELP I AM TRAPPED IN 2006 PLEASE SEND A TIME MACHINE gear just to push this thing into a 5-hit, would make it not even worth using.
You can 6-hit the 10% WS damage Fairly easily, the same way a Bravura WAR would do it.
Didnt add the newer gear to the gear set, but ideally this is how you would 6-hit the weapon. Belenos mantle would be better than the White Tat aswell, not sure how hard that NM is though, just know its a Tonberry and those suck. Could also use like Attila's Earring and Ecphoria ring for the last extra 2 STP you need instead of white tat or belenos.