Alter Aeon Online Help

Keywords are:  'thief skill backstab bstab stab'

Skill: backstab                 Lvl  9 Thie  (21%)
                                (critical)   Requires: bloodletting stab
                                Group: Thief melee fighting skills
                                
                                Speed: very slow

Usage:
bstab <character>
backstab <character>

Backstab is a thief skill where you sneak up on your opponent and stab them
in the back with a dagger or other piercing weapon.  After backstabbing,
the attacker is lagged for a short time.

Note that backstab is not totally effective on many creatures.  Skeletal
and crystalline creatures are nearly immune, while creatures that are injured
are generally much more aware and harder to sneak up on.

Dexterity will help you to make your backstab more often, and low dexterity
can hinder your backstab considerably.

Only one-handed weapons with a purely penetrating damage type, such as
pierce, stab or sting, can be used for backstabbing.