CirQax is a rare Runeword created by combining a Cir Rune of Ritual and a Qax Rune of Invocation.
How to Create CirQax
You can create CirQax by adding the magic Cir Rune of Ritual and the rare Qax Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Cir - Cast the same non-Channeled Skill 3 times in a row. (50)
Qax - Your next non-Basic Skill cast spends all of your Primary Resource to deal up to 100% increased damage. (400)
Overflow
CirQax can not overflow because the amount of Offering you receive from the Cir Rune exactly fills the required Offering of the Qax Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.