Psychic Instability

From Guild Wars Wiki

Elite Spell. Interrupt target foe's action. If that action was a spell that foe is knocked down. (50% failure chance with Fast Casting 4 or less.)

Concise description

Elite Spell. Interrupts an action. Causes knock-down if interrupted action was a spell. 50% failure chance unless Fast Casting 5 or higher.

[edit] Acquisition

Signet of Capture

• Chazek Plague Herder (Unwaking Waters (explorable area))

[edit] Trivia

This skill icon is similar to that of Teinai's Heat.