NeoThul is a rare Runeword created by combining a Neo Rune of Ritual and a Thul Rune of Invocation.
How to Create NeoThul
You can create NeoThul by adding the rare Neo Rune of Ritual and the rare Thul 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)
Thul - Invoke the Sorcerer's , inflicting Freeze and Vulnerable onto enemies. (300)
Mystical Frost Nova
Overflow
When NeoThul overflows, you receive the Thul Rune's overflow effect (Up to 100% Increased Radius) 0.33 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.