XolOhm is a legendary Runeword created by combining a Xol Rune of Ritual and a Ohm Rune of Invocation.
How to Create XolOhm
You can create XolOhm by adding the legendary Xol Rune of Ritual and the legendary Ohm Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Xol - Invoke a Skill from another Class. (150)
Ohm - Invoke the Barbarian's , increasing your damage dealt by 15% for 6 seconds. (600)
War Cry
Overflow
XolOhm can not overflow because the amount of Offering you receive from the Xol Rune exactly fills the required Offering of the Ohm Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.