From WoWWiki
Frost Warding is a mage talent that increases the armor and resistance given by the Frost Armor and Ice Armor spells by up to 50% at max rank 2. In addition, it gives Frost Ward and Fire Ward up to 30% chance to negate damage spells that would normally be absorbed (doing no damage to the Ward) and turn the damage they would have caused into mana for the Mage. This talent is mainly used in frost-based PvP specs, and even then it is not very popular when compared to other talents available.
The reflection chance is similar to Molten Shields, which gives Fire Ward and Frost Ward a chance to reflect spells. Along with Arcane Fortitude, this is one of two Mage talents that will increase armor, though this talent only does so when Ice Armor or Frost Armor is used.
| Rank | Resistance | Armor | Reflect chance
|
| 1 | + 25% | + 25% | 15%
|
| 2 | + 50% | + 50% | 30%
|