Enduring Winter

Enduring Winter
	Enduring Winter (3 ranks); Frost, Tier 4; Reduces the mana cost of all spells by 3/6/10%. In addition, your Frostbolt spell has a 33/66/100% chance to grant up to 10 party or raid members mana regeneration equal to 1% of their maximum mana over 10 sec.;
Requirements
Class	Mage
Tree	Frost
Points required	15
Properties
Affects	[Summon Water Elemental], [Frostbolt]
Related buff
	Magic ; Replenishment ; Replenishes 1% of maximum mana per 5 sec. ; Duration: 15 seconds ;

Enduring Winter (formerly Improved Water Elemental) is a talent in the Frost tree, you will need to spend 18 points in Frost to max it.

Patch changes[]

Patch 5.0.4 (2012-08-28): Removed.
Patch 4.0.1 (2010-10-12): No longer increases the duration of the Water Elemental. Now reduces the mana cost of all spells by 3/6/10%.
Patch 3.1.0 (2009-04-14): Renamed Enduring Winter. Instead of the Water Elemental increasing mana regeneration for the Mage's party, casting Frostbolt now has a 33/66/100% chance to provide the [Replenishment] buff to up to 10 people in the Mage’s party or raid.
Patch 3.0.2 (2008-10-14): Added.

Enduring Winter
Enduring Winter (3 ranks) Frost, Tier 4 Reduces the mana cost of all spells by 3/6/10%. In addition, your Frostbolt spell has a 33/66/100% chance to grant up to 10 party or raid members mana regeneration equal to 1% of their maximum mana over 10 sec.
Requirements
Class	Mage
Tree	Frost
Points required	15
Properties
Affects	[Summon Water Elemental], [Frostbolt]
Related buff
Magic Replenishment Replenishes 1% of maximum mana per 5 sec. Duration: 15 seconds