KaaXan is a legendary Runeword created by combining a Kaa Rune of Ritual and a Xan Rune of Invocation.
How to Create KaaXan
You can create KaaXan by adding the rare Kaa Rune of Ritual and the legendary Xan Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Kaa - Lose 1% of your Maximum Life. (2)
Xan - Your next Skill cast will be a guaranteed Critical Strike and Overpower. (700)
Overflow
KaaXan can not overflow because the Xan Rune does not have an overflow effect.
Overflow occurs when your Ritual generates more Offering than required for the Invocation. The overflow effect is proportional to the amount Offering overflows.