Utter Destruction

Draco came down upon the earth with all his energy concentrated into his fist. This was the activation procedure for the Magnitude skill, but it could be done in various other ways like stomping, bashing, slamming, etc, but Draco simply chose the flashiest way. 

When the monsters of the animal farm saw him crash into the earth, for a split second their minds froze and their hearts shook. This was something they had never seen and could not comprehend. 

When Draco connected with the earth, the land shook like someone had thrown it onto a roller coaster. All the beings within range of the skill screamed and panicked greatly. 

Being in an earthquake was horrifying in and of itself but Draco's magnitude was a concentrated tremor, not one that was spread over a large area like a natural earthquake.