BacLac is a legendary Runeword created by combining a Bac Rune of Ritual and a Lac Rune of Invocation.
How to Create BacLac
You can create BacLac by adding the legendary Bac Rune of Ritual and the rare Lac Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Bac - Travel 5 meters. (50)
Lac - Evoke the Barbarian's , reducing your damage taken. (800)
Challenging Shout
Overflow
BacLac can not overflow because the amount of Offering you receive from the Bac Rune exactly fills the required Offering of the Lac Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.