Halberd

Normally, you strike with a halberd’s axe head, but the spike on the end is useful against charging opponents. If you use a ready action to set a halberd against a charge, you deal double damage on a successful hit against a charging character.

You can use the hook on the back of a halberd to make trip attacks. If you are tripped during your own trip attempt, you can drop the halberd to avoid being tripped.