Mage · Frost · tier 3 · from level 20

Frost Channeling

+28.2 Frostbolt

3/3 · level 60 · per 100 mana · and 4 more

Frost Channeling 123

Rank 3/3

Reduces the mana cost of your Frost spells by 15% and reduces the threat caused by your Frost spells by 30%.

Frostbolt +17.6% +28.2 Frostfire Bolt +17.6% +16.2 Blizzard +17.6% +14.3 Cone of Cold +17.6% +10.6 Frost Nova +17.6% +9.0

Averages, counting crits and misses, for a level 60 Mage with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.