Unleash a flurry of ice, striking the target 3 times for a total of [(31.6% of Spell power) * 3] Frost damage. Each hit reduces the target's movement speed by 70% for 1 sec.
Level 37: While Brain Freeze is active, Flurry applies Winter's Chill, causing your target to take damage from your spells as if it were frozen.
Flurry's tooltip has been updated to reflect that while Brain Freeze is active, Flurry applies Winter's Chill to the target.
Flurry missile speed increased by 11%.
Hotfix (2017-01-31): "The first missile from a Flurry cast should now hit sooner."
Developers' notes: This allows a [Frostbolt] or [Ebonbolt] cast immediately before a [Brain Freeze] Flurry to more consistently benefit from that Flurry's Winter's Chill effect, even if the mage isn't standing at long range. This allows the Frost Mage who has an active Brain Freeze to cast Frostbolt/Ebonbolt, then an Instant Flurry, then [Ice Lance] while standing 15+ yards from the target. Previously, the Mage had to be about twice as far away.
[Bone Chilling], 
[Lonely Winter]
Patch 7.2.5 (2017-06-13):
[Frostbolt] or 
[Ebonbolt] cast immediately before a 
[Brain Freeze] Flurry to more consistently benefit from that Flurry's Winter's Chill effect, even if the mage isn't standing at long range. This allows the Frost Mage who has an active Brain Freeze to cast Frostbolt/Ebonbolt, then an Instant Flurry, then 
[Ice Lance] while standing 15+ yards from the target. Previously, the Mage had to be about twice as far away.
[Frostfire Bolt]. 
