KaaQua is a rare Runeword created by combining a Kaa Rune of Ritual and a Qua Rune of Invocation.
How to Create KaaQua
You can create KaaQua by adding the rare Kaa Rune of Ritual and the rare Qua Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Kaa - Lose 1% of your Maximum Life. (2)
Qua - Restore an Evade charge and gain 6% Movement Speed for 5 seconds, up to [6*5]%. (400)
Overflow
KaaQua can not overflow because the amount of Offering you receive from the Kaa 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.