Mage · spell

Cone of Cold

334per cast

Rank 5 · level 60 · before talents

Cone of Cold

555 Mana

Instant10 sec cooldown

Targets in a cone in front of the caster take 333 to 362 Frost damage and are slowed by 40% for 6 sec.

Talents that change it, each at full ranks:

Improved Cone of Cold +117 Arcane Power · with Arcane Power active +100 Shatter · against Frozen targets +82.3 Piercing Ice +20.1 Arcane Instability +15.1 Elemental Precision +10.4 Ice Shards +5.0 Arcane Mind +0.3 Frost Channeling per 100 mana +10.6 Arcane Concentration per 100 mana +6.7 Master of Elements per 100 mana +0.5

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