CemXal is a rare Runeword created by combining a Cem Rune of Ritual and a Xal Rune of Invocation.
How to Create CemXal
You can create CemXal by adding the magic Cem Rune of Ritual and the rare Xal Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Cem - Cast Evade. (75)
Xal - Gain 20% Maximum Life for 6 seconds. (200)
Overflow
When CemXal overflows, you receive the Xal Rune's overflow effect (Increased Duration) 0.13 times.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.