BacTzic is a legendary Runeword created by combining a Bac Rune of Ritual and a Tzic Rune of Invocation.
How to Create BacTzic
You can create BacTzic by adding the legendary Bac Rune of Ritual and the rare Tzic Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Bac - Travel 5 meters. (50)
Tzic - Evoke the Spiritborn's , dealing damage and Knocking Down enemies. (250)
Concussive Stomp
Overflow
BacTzic can not overflow because the Tzic Rune does not have an overflow effect.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.