The Flood, Flood of Bruinen or Elven Flood was a mass of Water in the shape of Horses at the Ford of Bruinen. It can wash out enemies as was done by Arwen when she released it.
Films & Video gamesEditIt appears in Fellowship of the Ring where Arwen at the Ford of Bruinen calls The Flood to washed out The Nazgul's horses.
The Lord of the Rings: The Battle for Middle-Earth (Xbox360/PC)Edit
The Flood can be used only for the Elven faction to crush your enemies. It cost 25 power points (Same as Good Camapin and Skirmish).