Instead of entering a nick as in $2, could it not be:

if ($2 == $me)

Then it would not matter if its loaded on a bot or person or if the current nick is changed- to avoid having to keep going into the code and altering the names?

I\'m wondering how the message and describe functions go together? Perhaps...

if ($2 == One-Winged-Angel) { msg $chan $nick $+ ! How very dare you try that.
  describe $chan casts Supernova on $nick }

could be:

if ($2 == $me) {
  msg $chan $nick $+ how dare you try that
  describe $chan casts Supernova on $nick
}

A timer there might be useful.
Spell casting with punishments... I like the idea.