Silent Custodians
The Lotus Eaters have lost the ability to think or speak. Many have their vocal cords removed. The only sound like it ever be heard from them is the near inaudible hissing and wheezing as they breathe.
Mannequins
Students and alumni often refer to these creatures as mannequins due to their appearance. Their bodies are hairless and without gender. Their faces are sometimes disfigured.
Some of the more complex cases have other limbs attached to their bodies or may have limbs removed. Some may have more than one mouth or a multitude of eyes. They are a horrible sight to see you for many individuals who are not accustomed to them.
Mental state
Lotus eaters are effectively mindless, having no thought, memory, or sense of self. They have no self preservation instincts. While they lack the ability to speak they do have no understanding what I said to them. The lotus eaters are able to receive information and interpret that information, but because they have no memory, the information they receive directly will simply replace information received previously.
Lotus eaters do not respond to any form of conversation they can only respond to commands, and the only response they can give is to follow said commands.
One has to be particularly careful with how they phrased each command. The command must come in the form of a single sentence. The more complex that sentence is, the less likely you are to receive intended or favorable results. One should refrain from prepositional phrases and compound sentences. It can use commands listed in a series so long as this series is kept as simple as possible.
Keeping it in house
The lotus eaters would make an excellent fighting force because they are incredibly durable. They have some resilience to almost anything that can be thrown at them, and exhibit no signs of pain for the things that can injure them. The Lotus Eaters are never allowed to leave areas under schools control, however.
This is not just due to their volatile nature. The Lotus Eaters have a strange phobia that prevents them from leaving the grounds of the school. If forced to do so they will become violent and distraught.
Research shows that this is because of the final complex thoughts the Lotus eater had when they were human. The desperate desire to remain on school grounds remains.
Well. The mages in the contest seems to have some benign moral principles, selfless as well; at least in principle. Maybe psychic surgery don't need any more limitation than that.