Drown the unbelievers in a sea of blood!
Henzell says...
  1. Armour skill reduces the penalties associated with heavy armours, and increases the effectiveness of your armour by 1/22nd of its base value per level of skill.
  2. The flat EV penalty of a piece of armour is reduced by Armour skill. See {encumbrance rating}.

Information based on master branch and the great LearnDB.
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