XolQua is a legendary Runeword created by combining a Xol Rune of Ritual and a Qua Rune of Invocation.
How to Create XolQua
You can create XolQua by adding the legendary Xol Rune of Ritual and the rare Qua Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Xol - Invoke a Skill from another Class. (150)
Qua - Gain 7% Movement Speed for 5 seconds, up to 35%. (50)
Overflow
When XolQua overflows, you receive the Qua Rune's overflow effect (Increased Duration) 2 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.