Fingers of Frost
10% chance to Freeze Enemies which are Chilled
12% increased Cold Damage
10% increased Effect of Chill
+10% to Cold Damage over Time Multiplier 
It also causes frozen enemies to become chilled as they unfreeze. On a typical cold damage hit that freezes a monster, the monster is also chilled from the cold damage. The chill duration starts concurrently with the freeze duration and normally expires briefly after the monster becomes unfrozen. With this passive, the "full" chill duration effectively starts after the enemy unfreezes. This is accomplished by adding the freeze duration to the chill duration with both effects beginning simultaneously. As such, the enemy is still considered chilled while frozen, which is important to note with the Hypothermia SupportHypothermia SupportCold, Support
Mana Multiplier: 120%Requires Level 31Supports any skill that deals damage.Per 1% Quality:
Supported Skills have 1.5% increased Chill Duration on EnemiesSupported Skills deal (20-39)% more Damage with Hits and Ailments against Chilled Enemies
Supported Skills have 10% chance to Freeze Enemies which are Chilled
Supported Skills have 20% increased Effect of Chill on Enemies
Supported Skills deal (20-39)% more Cold Damage Over TimeThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket. support gem.
- Mark_GGG (November 13, 2012). "Mechanics thread". Official Path of Exile Forums. Retrieved January 4, 2015.