In my campaign i usualy have an assassain or two try to kill my pcs every few sessions (just to mix things up) the assassians always vary in some way and i want to make something that will really scare the living emperor out of them. i want to make an assassain with a necrontyr phase blade and yes i know those are extremely rare and xenoheretical though ive only heard of them once inside of the necron codex for the 40k army, and i thought it would be a good idea because necrons are all but unheard of in the calaxis sector so they would have no idea what the sword is or how its doing this. If they kill the assassain then this would open up to the alcolytes going to tech priests and finding out information on the undying enemy or going to the assassinorium to find out which assassain could possibly be allowed such a weapon.
theres only one problem...no idea for the stats on the weapon hehe
any ideas? anyone? please?