ZanQax is a rare Runeword created by combining a Zan Rune of Ritual and a Qax Rune of Invocation.
How to Create ZanQax
You can create ZanQax by adding the magic Zan Rune of Ritual and the rare Qax Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Zan - Cast an Ultimate Skill. (150)
Qax - Your next non-Basic Skill cast spends all of your Primary Resource to deal up to 100% increased damage. (400)
Overflow
When ZanQax overflows, you receive the Qax Rune's overflow effect (Further Increased Damage) 0.13 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.