PocXan is a legendary Runeword created by combining a Poc Rune of Ritual and a Xan Rune of Invocation.
How to Create PocXan
You can create PocXan by adding the rare Poc Rune of Ritual and the legendary Xan Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Poc - Spend 5% of your Maximum Resource. (2)
Xan - Your next Skill cast will be a guaranteed Critical Strike and Overpower. (700)
Overflow
PocXan can not overflow because the Xan 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.