1: Things devour time, AKA time passes 2: Gnaws iron and bites steel, AKA eroding 3: Grinds rocks to meal, Also erosion 4: Slays king, ruins town, time passes by, and after some time the king and town is destroyed 5: Beats mountains down, also erosion/ weathering
Technically, it is...especially if its raining, cause the wind blows the water into the mountain, technically bringing a mountain down, chipping it ever so slightly, especially when its winter time, its how rocks get cracks, Also, air has an effect on animals, cause animals technically "devour" air, and so do plants, not to mention that air also technically rusts iron, and "bites" At steel, and grind hard stone, (Just like the mountain) The only thing that doesnt make sense is the slays king...