The villians command displays the "top" 20 evil players (players who have 
accumulated "evil" points by murdering other players.

The "evil" system is optional and may not be in place on your system. If
it is, this is how it works:

When you murder another player you are given some evil points (configureable
by the sysop). Each day you play the game you are forgiven some evil points
(again, configureable by the sysop). If you earn enough evil points to be
considered truly evil (an amount set by the sysop) all monsters you encounter
will attack you on sight (whether or not they are normally lawful monsters).

Generally, this is to discourage player-vs-player combat.
