ZanMet is a magic Runeword created by combining a Zan Rune of Ritual and a Met Rune of Invocation.
How to Create ZanMet
You can create ZanMet by adding the magic Zan Rune of Ritual and the magic Met Rune of Invocation to a two-socketed Helm, Chest Armor, Pants, or Two-Handed Weapon.
Zan - Cast an Ultimate Skill. (150)
Met - You leave the Necromancer's Desecrated Ground behind you for 3 seconds, dealing damage to enemies within. (100)
Overflow
When ZanMet overflows, you receive the Met Rune's overflow effect (Increased Duration) 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.