Vulnerability

Vulnerability is the term used to describe the ability some Elementals have to take 150% damage from some spells.

• Air Elementals and Storm Elementals are vulnerable to Lightning Bolt, Chain Lightning and Titan's Lightning Bolt.
• Earth Elementals and Magma Elementals are vulnerable to Meteor Shower.
• Fire Elementals and Energy Elementals are vulnerable to Ice Bolt and Frost Ring.
• Water Elementals and Ice Elementals are vulnerable to Armageddon, Fire Shield, Fireball, Inferno, Land Mine and Fire Wall.

Interestingly, Air and Earth elementals are vulnerable to spells of their own schools of magic, but Fire and Water elementals are vulnerable to spells from the opposite school.

Vulnerability could be considered contrary to immunity.