Lifeblood

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

Connected above

The tree draws a line into Lifeblood from Insatiable Blade, Improved Bone Shield and Gorefiend's Grasp or Abomination Limb.

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  Insatiable Blade

  Dancing Rune Weapon's cooldown is reduced by 30 sec and now generates 5 Bone Shield charges.

• 
  Improved Bone Shield

  Bone Shield increases your Haste by 10% and it can stack 2 additional times.

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  Gorefiend's Grasp

  Shadowy tendrils coil around all enemies of a hostile or friendly target, pulling them to the target's location and Silencing them for 3 sec.

• 
  Abomination Limb

  Sprout an additional limb, pulling enemies further than 8 yds from you every 1 sec. The same enemy can only be pulled once every 4 sec.

Connected below

Lifeblood leads on to Plague Infusion, Bloody Reflection and Iron Heart.

• 
  Plague Infusion
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  Bloody Reflection

  While Blood Shield is active, taking direct damage reflects (110% of Attack Power) Shadow damage back to the attacker. Blood Shield can now absorb up to 65% of your maximum health.

• 
  Iron Heart

  Blood Shield's duration is increased by 2 sec and it absorbs 20% more damage.

Same row

Also on this row: Boiling Point, Everlasting Bond, Voracious and Blood Feast.

• 
  Boiling Point

  Heart Strike has a chance to make your next Blood Boil empowered, dealing 50% increased damage and echoing after 3 sec.

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  Everlasting Bond

  Summons 1 additional copy of Dancing Rune Weapon and increases its duration by 4 sec.

• 
  Voracious

  Death Strike's healing is increased by 5% and grants you 15% Leech for 8 sec.

• 
  Blood Feast

  Anti-Magic Shell heals you for 100% of the damage it absorbs.