NeoChac is a rare Runeword created by combining a Neo Rune of Ritual and a Chac Rune of Invocation.
How to Create NeoChac
You can create NeoChac by adding the rare Neo Rune of Ritual and the rare Chac Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Neo - Avoid health damage while fighting for 2 seconds. (200)
Chac - Invoke the Druid's Lightning Bolt, striking a nearby enemy. (20)
Overflow
When NeoChac overflows, you receive the Chac Rune's overflow effect (Increased Bolts Spawned) 9 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.