Master Corrupting Rune

Master Corrupting Rune is a weapon rune in Dragon Age: Inquisition

Effect
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Acquisition

 * One can be found in a chest in Echoback Fort, The Western Approach
 * Schematic: Rune found in Corvacus in The Western Approach behind a locked door. Requires deft hands )perk

Materials

 * Blank Runestone x 1
 * Intense Red Lyrium x 6