BacEom is a legendary Runeword created by combining a Bac Rune of Ritual and a Eom Rune of Invocation.
How to Create BacEom
You can create BacEom by adding the legendary Bac Rune of Ritual and the legendary Eom Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Bac - Travel 5 meters. (50)
Eom - Reduce your active Cooldowns by 0.25 seconds. (100)
Overflow
BacEom can not overflow because the amount of Offering you receive from the Bac Rune exactly fills the required Offering of the Eom Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.