The PUS Sinister is a replica of the USS Monitor which was used during the American Civil War. The Sinister has a round turret house that holds four cannons, one facing each direction. The turret is protected by a layer of brick and obsidian. The top hull of the ship is protected by two layers of brick. What is lacks in armaments, it makes up for in the fact that your shots have to hit the top of the ship, allowing for many shots to fly over harmlessly.