The Crimson Dragon is vulnerable to cold damage and immune to fire damage. It deals mainly fire damage from a distance, shifts targets randomly at all attackers but mainly targets the more aggressive close-range targets such as EV's. It hits for high amounts of melee damage. Firebreathing effects which looked like an Meteor Swarm spell. Occasional Wildfire-like spell. It will also perform a inferno/earthquake type effect ... instant death to those without a 70's suit. (damage is lessened the further you are away from it) Also, do not use dragon type pets to attack the Crimson Dragon ... your pet will quickly loose loyalty then it will become wild and you will loose your bond with your pet. Peerless loot.