AhuTun is a legendary Runeword created by combining a Ahu Rune of Ritual and a Tun Rune of Invocation.
How to Create AhuTun
You can create AhuTun by adding the legendary Ahu Rune of Ritual and the magic Tun Rune of Invocation to a two-socketed Helm,
Chest Armor,
Pants, or
Two-Handed Weapon.


Overflow
When AhuTun overflows, you receive the Tun Rune's overflow effect (Increased Grenades Spawned) 0.2 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.