In addition, if all spells are lockable, like BoA, BoK, lich form, call divine strength, divine might or any other stat modifying skills, not only will it make some people uber powerful all the time, it will cut down on player interaction. I ask clerics and necros for spells all the time, and as a cleric before, I had spellup requests almost 2-3 time an hour. I found it annoying, but one of the things that is great about our MUD are those interactions, and making it so that we don't only rely on ourselves.