PocXal is a rare Runeword created by combining a Poc Rune of Ritual and a Xal Rune of Invocation.
How to Create PocXal
You can create PocXal by adding the rare Poc Rune of Ritual and the rare Xal Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Poc - Spend 5% of your Maximum Resource. (2)
Xal - Gain 20% Maximum Life for 4 seconds. (200)
Overflow
PocXal can not overflow because the amount of Offering you receive from the Poc Rune exactly fills the required Offering of the Xal Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.