XolTal is a legendary Runeword created by combining a Xol Rune of Ritual and a Tal Rune of Invocation.
How to Create XolTal
You can create XolTal by adding the legendary Xol Rune of Ritual and the magic Tal Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Xol - Evoke power from another Class. (150)
Tal - Evoke the Spiritborn's Pestilent Swarm, dealing damage to enemies. (100)
Overflow
When XolTal overflows, you receive the Tal Rune's overflow effect (Increased Swarms Spawned) 0.5 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.