LithQua is a legendary Runeword created by combining a Lith Rune of Ritual and a Qua Rune of Invocation.
How to Create LithQua
You can create LithQua by adding the legendary Lith Rune of Ritual and the rare Qua Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Lith - Stand still while fighting for 0.31 seconds. (25)
Qua - Gain 7% Movement Speed for 5 seconds, up to 35%. (50)
Overflow
LithQua can not overflow because the amount of Offering you receive from the Lith Rune exactly fills the required Offering of the Qua Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.