Labra resembles a bizarre chimera of dog and ant, with the faceless head of a dog and the thorax and abdomen of an ant, complete with eight canid legs sprouting from the thorax. It is about the size of a pony. Replacing its face is a deep hole in its head, from which a liquid form of Pure Aura drips; when threatening or attacking an enemy, sharp crystal shards resembling teeth snap down in this orifice. They are hidden within sheathes on the top and bottom of its "mouth". When excited, Labra's Pure Aura drool froths up and releases bubbles. If popped these release normal gaseous Pure Aura. Within the center of its body is a heart-shaped crystal of Pure Aura that keeps it animate.
- Labra produces a peculiar droning sound similar to that of a tuning fork instead of barking, whining or anything of the sort. It produces this sound faintly at all times, but can manipulate its volume and frequency to produce more audible sounds.
- Its body is hollow and it produces an unearthly, echoing "gonging" sound when struck. Phantasm has taken advantage of this and uses it as a "death bell", riding it into battle and striking it with their hooves. It feels no pain when this is done.
- The only way to kill Labra is to manage to break through its hollow shell and remove its heart crystal. It will simply become an inanimate statue when this is done, but returning the crystal will reanimate it. This will also automatically heal any cracks or holes.
- Labra was inspired by Endogeny from Undertale; its sharp teeth come from Nuclear Throne's Horror (who has been loosely compared to Endogeny a few times).