AhuZec is a legendary Runeword created by combining a Ahu Rune of Ritual and a Zec Rune of Invocation.
How to Create AhuZec
You can create AhuZec by adding the legendary Ahu Rune of Ritual and the rare Zec Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Ahu - Lucky Hit: Up to a [100|%|] chance against Injured enemies. (10)
Zec - Reduce your active Ultimate Cooldown by 4 seconds. (200)
Overflow
AhuZec can not overflow because the amount of Offering you receive from the Ahu Rune exactly fills the required Offering of the Zec Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.