Grappo Torrent
The Grappo Torrent is the name of the battle maneuver strategized by Demir Grappo against Kerite's Drakes in which Demir had the engineers of the Ironhorn Rams destroy a dam to a man-made lake, flooding the river bed in which the mercenaries are camped. The ensuing flood drowns half of Devia Kerite's forces, evening the score between the two generals.
