Alter Aeon Online Help

Keywords are:  'guild skill forge reinforce armor'

Skill: reinforce armor          Lvl 31  Any  (85%)
                                (helpful)   Requires: forge blade
                                Group: Smiths Guild Trade Skills
                                Profession
                                Guild: The Smiths Guild  Rank: Master

Usage:
forge enhance reinforce <armor>

The 'reinforce armor' skill allows a high level crafter to reinforce
and strengthen a piece of armor, raising its AC-apply value.  Each
reinforcement raises the AC value by one point.

This enhancement must be done at a forge and has a gold cost based on
the the AC value of the armor and its base cost. It also costs profession
points. You can preview the cost by adding the '-estimate' tag after the
name of the armor.