PocOno is a rare Runeword created by combining a Poc Rune of Ritual and a Ono Rune of Invocation.
How to Create PocOno
You can create PocOno by adding the rare Poc Rune of Ritual and the magic Ono Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Poc - Spend 5% of your Maximum Resource. (5)
Ono - Invoke the Druid's Dancing Bolts, seeking and dealing damage to enemies. (25)
Overflow
PocOno can not overflow because the amount of Offering you receive from the Poc Rune exactly fills the required Offering of the Ono Rune.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.