Use: Permanently teaches you this glyph. Reduces the cast time of your Frost Armor, Mage Armor, and Molten Armor spells by 1.5 sec, and increases the defensive effect of each Armor by an additional 10%.
Sell Price: 1
The slow effect means never having to fight aggressive mobs you'd rather run past, assuming they don't resist every time. On foot, a chasing creature will get in 2 or 3 hits (some things run faster and swing faster than others) before you outpace them; mounted characters will be hit a single time before getting away.
Patch 3.2.0 (04-Aug-2009): The mana cost on these spells has been reduced by approximately 15%.
/Patch 3.0.2 (14-Oct-2008): Frost Armor, Ice Armor, Mage Armor and Molten Armor are no longer Magic effects and cannot be dispelled.
Patch 2.0.3 (09-Jan-2007): "Frost Armor" is now correctly affected by "Elemental Precision".
Patch 1.8.0 (10-Oct-2005): Fixed a bug where the Chilled effect caused by Ice Armor/Frost Armor was not removed properly when shapeshifting.
Patch 1.6.0 (12-Jul-2005): Targets that are immune to movement slowing effects will no longer be affected by the Chill's movement slowing effect. Targets will still have their melee attack speed reduced.