"Hint: Reverse Heal skill"

Hint: Reverse Heal skill:
Type /noshift in the chat window when facing
undead opponents. By using the Heal skill, you will be attacking
them with it. Note: Do not try this on enemies that are not undead,
as it will heal them. Hold [Shift] to heal yourself while
in this state.
Type /ns in the chat window to enable reversing heal. With
it, you can use the heal skill to kill the undead type enemies.
Your in-game mouse pointer will now be a sword when you move it
over players. This may make it difficult to move around or run
away.