Shattered Psyche

In the Shadow Priest talent tree, Shattered Psyche sits in the Shadow specialization talents, row 6 of 11. It is a single-point node. Its row opens once 8 points are spent in Shadow Talents.

Connected above

The tree draws a line into Shattered Psyche from Mental Decay.

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  Mental Decay

  Increases the damage of Mind Flay by 25%.

Connected below

Shattered Psyche leads on to Instilled Doubt and Maddening Tentacles.

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  Instilled Doubt2 ranks

  Increases the critical strike chance of Vampiric Touch and Shadow Word: Pain by 8% and their critical strike damage by 20%.

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  Maddening Tentacles

  Tentacle Slam afflicts your target with Shadow Word: Madness at 25% effectiveness.

Same row

Also on this row: Shadowfiend, Dark Thoughts, Maddening Touch, Improved Voidform or Ancient Madness, Shadeburst and Dark Evangelism.

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  Shadowfiend

  Shadow Word: Death has a 40% chance to summon a Shadowfiend for 5 sec when damaging targets below 20% health. Summons a Shadowfiend to attack your target for 5 sec. Generates 1 Insanity each time the Shadowfiend attacks.

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  Dark Thoughts

  Increases the chance for Shadowy Insight to occur by 25%. When consuming Shadowy Insight, Mind Blast generates 1 additional Insanity.

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  Maddening Touch

  Vampiric Touch deals 20% additional damage and has a chance to generate 1 Insanity each time it deals damage.

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  Improved Voidform

  Voidform increases your spell damage by an additonal 5% and grants 2 additional uses of Void Volley.

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  Ancient Madness

  When Voidform ends, the haste lingers and decays over 10 sec.

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  Shadeburst
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  Dark Evangelism

  Increases your periodic spell damage by 6%.