Steel Kraken

During the Last War, House Cannith produced many forms of construct, even before the creation of the Warforged. One of their lesser known creations that didn't get sold outside of Cyre were the steel krakens, which were deployed into Kraken Bay.
Steel Krakens appear like gigantic squids made from steel, wood and iron. Their tentacles are made up of many metal segments that allow them to bend like real tentacles, and their mouths feature rows of spinning, drill-like teeth for breaching the hulls of ships. Each steel kraken has ten tentacles, at least 20ft. in length, and they are incredibly strong. A single steel kraken can incapacitate a ship with it's tentacles, preventing the ship from moving while it breaches the ship's hull with it's beak and then finishes off the crew as they attempt to flee the sinking ship.
Like many of House Cannith's earlier constructs, steel krakens possess only rudimentary levels of intelligence. They are capable of following simple orders, but they cannot take the initiative and react based on the circumstances. The steel krakens were given the order to defend Kraken Bay from enemy forces, and they continue to follow those orders today, even though their masters are dead. They attack any ship that approaches Cyre's coast.