When Garen came to, there was a mixture of countless skeletons, flesh and blood everywhere. Crackling sounds were heard as they were ignited by the corrosive air, releasing a green smoke.
There were demons constantly rushing past him to the frontline. They were Tanar'ri's little demons and elder demons. They were had long pointed tails, black bat wings on their backs, and horns on their heads. Their form was extremely distinct, which was the standard demonic form that humans had in mind.
Others were some oddly-shaped war machines; huge black turtles with sharp teeth, and giant cyclops with black scales all over their face.
There were also devil rays floating in midair, their whole body covered with huge stingers. Each one looked like a balloon, and they could burst out numerous stingers like arrows raining down.
In addition to the various kinds of demons, there were the mercenaries from each major Planes.
