Alter Aeon Online Help

Keywords are:  'warrior skill shieldblock block'

Skill: shield block             Lvl  8 Warr  (28%)
                                (critical)   Requires: parry
                                Group: Warrior weapon handling
                                
                                Speed: average

Shield block is a warrior skill used to block an opponents' blow with
a shield.  Shield fighting is its own discipline, and while using a shield
is almost always beneficial, only those trained in blocking are able to do
it well. It is a passive skill, which means that it is always active if you
are using a shield.  Most weapons, unarmed attacks and even some unusual
types of damage like blasts, zaps and spits can be blocked. However,
flexible weapons like whips and flails can easily bend around and
bypass shields.

Shield block varies in effectiveness depending on the type of shield and
whether or not weapons are wielded.  Using a two handed shield is the most
effective way to shield block, as they have a higher minimum chance of
blocking attacks. However, while using such a shield you will be unable to
attack using a normal weapon.

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 and you
won't be able to use combo attack bonuses.

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, shield block
can still serve to protect your character from a sizable percentage of
attacks.