NeoTal is a rare Runeword created by combining a Neo Rune of Ritual and a Tal Rune of Invocation.
How to Create NeoTal
You can create NeoTal by adding the rare Neo Rune of Ritual and the magic Tal Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Neo - Deal damage after not taking any within 5 seconds.
(Resets if Invulnerable.) (300)
Tal - Evoke the Spiritborn's Pestilent Swarm, dealing damage to enemies. (100)
Overflow
When NeoTal overflows, you receive the Tal Rune's overflow effect (Increased Swarms Spawned) 2 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.