These green cubes exploded around Essence to form a band of 25 Aurora Knights. They were clad in green plate mail with their faces obscured, the only thing showing their 'humanity' being their green glowing eyes from their helms.
These 25 Aurora Knights were mounted on horses that were also green-colored and seemed to be made of energy. They whinnied as their reins were pulled and the knights unhesitatingly charged toward the rushing undead.
BANG!
The collision was like two trains ramming into each other. The Knights steadily remained on their steeds as they swung about, using their lances, great axes, or swords to cut down all in their path. These fodder-like undead could only act as a napkin meeting a high-pressure water cutter, being manhandled without a chance to fight back.