ARMOR CLASS
Armor class is a measure of how difficult it is to cause damage to you. Armor
class is checked after defensive skills (dodge, parry, shield block, fade).
If you don't avoid an attack through those skills, your armor class kicks in
and tries to give you one more chance to avoid damage.
There is a strong armor class vs. hitroll relationship, but the exact formula
is not public knowledge at this time. Just know that the higher your hitroll,
the more likely to hit something, and the *LOWER* your AC, the more likely
you are to avoid damage from physical attacks.