Shackle Horror

In the Discipline Priest talent tree, Shackle Horror sits in the Priest class talents, row 5 of 10. It is a single-point node. Its row opens once 8 points are spent in Class Talents.

Connected above

The tree draws a line into Shackle Horror from Psychic Voice or Void Tendrils and Mind Control or Dominate Mind.

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  Psychic Voice

  Reduces the cooldown of Psychic Scream by 10 sec.

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  Void Tendrils

  Call shadowy tendrils to constrict enemies when Psychic Scream ends, rooting them in place for 4 sec.

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  Mind Control

  Controls a mind up to 1 level above yours for 30 sec. Does not work versus Demonic or Mechanical beings. Shares diminishing returns with other disorienting effects.

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  Dominate Mind

  Controls a mind up to 1 level above yours for 30 sec while still controlling your own mind. Does not work versus Demonic, Mechanical, or Undead beings. This spell shares diminishing returns with other disorienting effects.

Connected below

Shackle Horror leads on to Sanguine Teachings.

• 
  Sanguine Teachings

  Increases your Leech by 2%.

Same row

Also on this row: Everlasting Light, Move with Grace, Mental Agility, Twin Disciplines, Dark Enlightenment and False Autonomy.

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  Everlasting Light

  Surge of Light occurs up to 50% more often based on your missing mana.

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  Move with Grace

  Reduces the cooldown of Leap of Faith by 30 sec.

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  Mental Agility

  Reduces the mana cost of Purify Disease and Mass Dispel by 50% and Dispel Magic by 10%.

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  Twin Disciplines

  Increases the damage and healing of your Holy and Shadow spells by 2%.

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  Dark Enlightenment

  Increases your haste by 3%.

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  False Autonomy

  Increases the duration of Mind Control and Dominate Mind against enemy creatures by 15 sec.