"It's all about texture"
The Chompler is the elemental equivalent of a miner. It behaves exactly like Order miners in all respects except for the texture, that they don't have armor, and that they will give you an idea of the percentage of how much of a full load (75) they have gathered by how much gold is on their back.
There is also a different method of obtaining Chomplers than Order miners. Rather than just straight out buying them, you must first buy an earth elemental, and then use its ability which will cause it to morph into the spoken Chompler.
Like all miners, the Chompler has a miner hustle upgrade, which increases its health from one to two bars, and gives it a faster speed. However it has no equivalent of miner walls or turrets like Order and Chaos.