AhuGar is a legendary Runeword created by combining a Ahu Rune of Ritual and a Gar Rune of Invocation.
How to Create AhuGar
You can create AhuGar by adding the legendary Ahu Rune of Ritual and the magic Gar 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. (25)
Gar - Gain 2.5% Critical Strike Chance for 5 seconds, up to 25%. (25)
Overflow
AhuGar can not overflow because the amount of Offering you receive from the Ahu Rune exactly fills the required Offering of the Gar Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.