The running water the evil villain was having the greatest force of erosion in the Earth and was trying to destroy the mighty rocky. This power by the river is taking down rocky.
This leads to the rocky getting smaller and smaller. This process in the Hydrologic cycle in which this occurs is with precipitation runoff. Some of the powers to take down rocky include precipitation, runoff, and infiltration
Gradient is one of the powers that affect velocity of water, and have great erosion impact of water. Gradient is the slope channel characteristics including slope, and size and roughness. Discharge is another factor which contributes to the erosion impact of water. Discharge is the volume of water moving past a given point in a certain amount. This can weaken rocky and water is its kryptonite.