Icebreaker

In the Frost Death Knight talent tree, Icebreaker sits in the Frost specialization talents, row 8 of 11. It takes 2 points to fill. Its row opens once 20 points are spent in Frost Talents.

Connected above

The tree draws a line into Icebreaker from Northwinds and Everfrost.

• 
  Northwinds

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

• 
  Everfrost

  Rime empowered Howling Blast deals 50% increased damage to secondary targets.

Connected below

Icebreaker leads on to Shattering Blade and Hyperpyrexia.

• 
  Shattering Blade

  Frostbane consumes the Razorice on your main target to deal an additional 300% damage.

• 
  Hyperpyrexia

  Your Runic Power spending abilities have a chance to additionally deal 30% of the damage dealt over 4 sec.

Same row

Also on this row: Bonegrinder, Smothering Offense and Avalanche.

• 
  Bonegrinder2 ranks

  At your next Killing Machine consumes the stacks and grants you 10% increased Frost damage for 10 sec.

• 
  Smothering Offense

  Your auto attack damage is increased by 10%. This amount is increased for each stack of Icy Talons you have and it can stack up to 2 additional times.

• 
  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.