Arcturus

Once a sorcerer, Arcturus, the Frost Tyrant, now wields ancient ice magic, commanding blizzards and frost beasts. He has done irreversible damage to the land, seeking to conquer all in eternal winter. He's the Boss of the Great Frostpeak Keep, and normally he sits on her Frost Throne, on the Throne Room. Her Loyals are the Ice Lady, the Ice Golem and the Ice Troll, a powerful sub-bosses with all type of minions under their command.