YulQax is a legendary Runeword created by combining a Yul Rune of Ritual and a Qax Rune of Invocation.
How to Create YulQax
You can create YulQax by adding the legendary Yul Rune of Ritual and the rare Qax Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Yul - Cast a Skill with a Cooldown. (50)
Qax - Your next non-Basic Skill cast spends all of your Primary Resource to deal up to 100% increased damage. (400)
Overflow
YulQax can not overflow because the amount of Offering you receive from the Yul 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.