Everfrost

In the Frost Death Knight talent tree, Everfrost sits in the Frost specialization talents, row 7 of 11. It is a single-point node. Its row opens once 8 points are spent in Frost Talents.

Connected above

The tree draws a line into Everfrost from Frigid Executioner and Frozen Dominion.

• 
  Frigid Executioner

  Runic Empowerment has a 25% chance to refund 1 additional Runes.

• 
  Frozen Dominion

  Pillar of Frost now summons a Remorseless Winter that lasts longer. Each enemy Remorseless Winter damages grants you Mastery, for 15 sec.

Connected below

Everfrost leads on to Avalanche and Icebreaker.

• 
  Avalanche

  Casting Howling Blast with Rime active causes jagged icicles to fall on enemies nearby your target, applying Razorice and dealing (22.5% of Attack Power) Frost damage.

• 
  Icebreaker2 ranks

  When empowered by Rime, Howling Blast deals 30% increased damage to your primary target.

Same row

Also on this row: Howling Blades, Cryogenic Chamber, Frostwyrm's Fury and Northwinds.

• 
  Howling Blades

  Rime empowered Howling Blast unleashes 2 icy blades at its target that deal (25.2% of Attack Power) Frost damage and have 15% chance to grant Killing Machine.

• 
  Cryogenic Chamber

  When Howling Blast consumes Rime, 15% of the damage it deals is gathered into the next cast of Remorseless Winter, up to 20 times.

• 
  Frostwyrm's Fury

  Summons a frostwyrm who breathes on all enemies within 40 yd in front of you, dealing (296.6% of Attack Power) Frost damage, stunning enemies for 3 sec, and slowing movement speed by 50% for 10 sec.

• 
  Northwinds

  Howling Blast now hits an additional target with maximum effectiveness. Rime increases Howling Blast damage done by an additional 75%.