The Rat Demon, found in the sewers of Junkton.
The Rat Demon is a possessed boss found in the sewers of Junkton. After reaching level 56, players may rarely encounter this boss when exploring the marsh. Its level is always three above the player, and it has a minimum of 450,000 HP at level 59, increasing by 50,000 every level.
Quotes[]
Yikes! This boss has been possessed! (said by the game upon meeting any possessed boss)