You have a +2 bonus to AC while wearing this armor.  By using you walking movement, you can create sheets of ice below your feet.  This allows you to move vertically up, or quickly move between gaps.  These sheets of Ice have 20 HP and 10 AC and disappear at the start of your next turn.

As well, if a creature attacks you with a melee attack, frigid ice jettisons from the armor, dealing 1d6 cold damage 

Half plate consists of shaped metal plates that cover most of the wearer's body. It does not include leg protection beyond simple greaves that are attached with leather straps.

Notes: Bonus: Armor Class, Damage: Cold, Combat, Warding, Stealth Disadvantage