My most recent monster AV in Second Life, the Lich. In my game, Nightmare Creations, the liches were the ones that cast the spell which turned the land of Vhasta into the realm of the walking dead. They are all powerful spellcasters, so powerful they are able to float above the ground, and the arcane energies in their withered bodies cause the chains and robes about them to lash about as if alive. Their eyes are rolling flames of green energy and they can call upon the forced of the netherworld. Pretty nasty, huh?