Plague Mastery

In the Unholy Death Knight talent tree, Plague Mastery sits in the Unholy specialization talents, row 4 of 11. It is a single-point node.

Choice node

Plague Mastery shares its node with Grave Mastery. A character takes one of the two.

• 
  Grave Mastery

  Critical strike damage of your minions is increased by 15%

Connected above

The tree draws a line into Plague Mastery from Putrefy.

• 
  Putrefy

  Summon a Lesser Ghoul to strike the enemy for (199.7% of Attack Power) Shadow damage and have them explode for (139.4% of Attack Power) Shadow damage to nearby enemies.

Connected below

Plague Mastery leads on to Superstrain, Soul Reaper and Army of the Dead.

• 
  Superstrain

  Dread Plague deals damage to an additional nearby enemy at 75% effectiveness and has a chance to grant you 4 Runic Power.

• 
  Soul Reaper

  Rupture the soul of your enemy, dealing (450% of Attack Power) Shadowfrost damage and causing the foe to take 20% increased damage from your diseases and minions for 8 sec. Only usable on enemies below 35% maximum health. Consumes up to 3 Lesser Ghoul stacks to summon them instantly.

• 
  Army of the Dead

  Summon or empower Lesser Ghouls to form an unholy army of 8. While active, summoning a Lesser Ghoul will instead execute Orders based on nearby enemies. Death Orders Lesser Ghouls strike with you, dealing Shadow damage to your target. Epidemic Orders Lesser Ghouls erupt in viscera, dealing Shadow damage to nearby enemies. Deals reduced damage beyond 5 targets.

Same row

Also on this row: Foul Infections and Necromancer's Cunning.

• 
  Foul Infections

  Your diseases deal 10% more damage and have a 5% increased chance to critically strike.

• 
  Necromancer's Cunning

  When your Lesser Ghouls expire, they explode in viscera, dealing Shadow damage to enemies nearby.