Lich.
Cataclysm: Eternal Twilight
Husk of a human.
Cataclysm: Crimson Blight, plagues and starvation
Kraken.
Cataclysm: Hungry Deep, raids of fish-like humanoids on coastal areas.
Cataclysm: Rampant Genesis, grotesque creations haunting elven forests.
Cataclysm: Sundered Earth, straightforward strength, second highest casualty count.
Mortal that delved unprepared into esoteric magics.
Cataclysm: Fractured Time, traps people in alcoves of stuttering time for thousands of years.
12 ft titan in black armor. Killed far more than any other, landscape is still scarred.
Great Conflagrations, nothing outside the heroes party could fight him.
Mithril Rank dog.
Silver Rank. Mana infused vines that can cover hundreds of feet. They act as ambush predators, and are not very dangerous if noticed before attacking.
~Lvl 700. Polar bears twice the size of elephants. Physical attackers.
Loot: Frostmaw Fangs (x2), Titan Bear Claws (x8), Primal Ice Core, Pristine Frostmaw Titan Pelt {[Skinning]}, Meat (x38) {[Butchering]}, Arctic Essence Gland {[Alchemical Harvesting]}
~Lvl 1200. Giant undead bird
Opportunists. Not really monsters that get into direct conflict often. They’re supposed to be extinct.