Blue Vitriol is a Tier 1 (Common) type Metal Crafting Materials in Dragon Age: Inquisition (DAI). Materials such as these are found in the field by harvesting, defeating enemies, completing quests or obtained as a reward for War Table Missions.
Blue Vitriol Effect
Low armor rating / damage (staff damage type: cold)
1% chance on stagger target on hit
1% chance to stagger attacker on being hit