YulQue is a legendary Runeword created by combining a Yul Rune of Ritual and a Que Rune of Invocation.
How to Create YulQue
You can create YulQue by adding the legendary Yul Rune of Ritual and the rare Que Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Yul - Cast a Skill with a Cooldown. (50)
Que - Invoke the Druid's for 3 seconds, granting yourself a Barrier. (300)
Earthen Bulwark
Overflow
YulQue can not overflow because the amount of Offering you receive from the Yul Rune exactly fills the required Offering of the Que Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.