Alter Aeon Online Help

Keywords are:  'warrior skill parry'

Skill: parry                    Lvl  2 Warr  (28%)
                                (critical)   
                                Group: Warrior weapon handling
                                
                                Speed: average

Parry is a warrior skill used to deflect an opponents' blow with your weapon.
In order to parry you must be wielding a weapon.  It is a passive skill,
which means that it is always active if you are wielding a weapon. While
most weapons and unarmed attacks can be parried, non-solid attacks such as
blasts, zaps and spits cannot.

Parrying with a weapon varies in effectiveness depending on the type of
weapon, and whether or not a shield is used.  Using a two handed weapon
is the most effective way to parry, however while using such a two handed
weapon you will be unable to use a shield to block attacks.

Using a two-handed weapon, or dual wielding two weapons, is less effective
than blocking attacks with a two handed shield.  However, using a one handed
shield and weapon allows you to both parry and block, which is more
effective than using either a two handed weapon or two handed shield. The
tradeoff is that the two handed shield may have higher AC than one-handed
shields, while two-handed weapons generally do more damage than one-handed
ones.

It is highly recommended that all players learn this skill at some point.
Even if you have a low dexterity, or a low warrior level, parry can still
serve to protect your character from a sizable percentage of attacks.