The soul feeding requirement was added to give them a reason to be more active. IMHO removing one of the most compelling aspects for chosing lichdom over other forms of undead aka not having to give a ### about the world and be content to retreat for centuries and more to your studies until no one even remembers you once existed.
But obviously this makes liches too boring as undead, as they would just hole up and never bother anyone.
IMHO this makes them lose a lot of their specialness. When a lich who has no real need to do so comes out of his seclution it's much more interesting to find out what stirred him up then merely "hm, he must be hungry for a soul again"
But obviously this makes liches too boring as undead, as they would just hole up and never bother anyone.
IMHO this makes them lose a lot of their specialness. When a lich who has no real need to do so comes out of his seclution it's much more interesting to find out what stirred him up then merely "hm, he must be hungry for a soul again"