I was thinking that if I ever get to NG++++++++, I might try some Undead Burg PVP without weapons (well, maybe bows and the trident) by undead rapporting some hollow warriors to my aid. I would just wait for someone to invade me and let them taste the power of my minions.
Or maybe not, since the effect doesn't last long and the first targets they probably attack are their buddies. But I still want to try it.