This Teigu was submitted by runicwolf
Teigu number 45: Codename: Beholder's eyes.
Type: Eyeballs.
Background: Usable by replacing one's own eyes with the Teigu. The weapon in question was created by obtaining it from a danger beast with an extraordinary amount of awareness and reflexes. Though in comparison to some other beasts the monster was quite tame in comparison, by observations of people who have fought it, the beast quite literally almost nigh impossible to defeat due to the fact it kept predicting the soldiers' movements and outsmarting everyone else.
Simply put, the beast was hunted down in the name of science to see what part of its body caused it to be such an intelligent and elusive prey. As it turned out, though the brain was remarkably different, and its body did aid in defeating those who hunted it, the eyes were the culprit for the danger beast's potency.
How it was captured in the first place is a bit sketchy, however, if the reports were to be true, then someone actually, "Accidentally caught it and didn't realize what it was until the experienced hunters came out and face-palmed at the one who caught it." The person who managed to catch the beast was a mentally challenged man who was going to be used as bait for a completely different danger beast.
In the same vein, if the reports were true, then the danger beast, "Had an expression of someone that gave up in life when they realized the dumbest thing managed to take them out. It was like his pride had fallen all at once...and to be honest, I think I would've done the same thing."
Appearance: The eyes are slightly larger than a human's, however it is still manageable to fit into one's eye-socket. The eyeballs themselves seem to be shining like the sky or the ocean, and though they do look quite remarkable, the inner-workings of the eye was one of the surprisingly complex structures the scientists have seen.
Compatibility: The eyes didn't exactly care who wore it, as long as the person had enough courage to have their eyes removed to get replaced by it. Not only that, but a doctor competent and clean enough to successfully insert the eyeballs in.
Case in point, the fact people died trying to insert the Beholder's eyes wasn't even the eyes rejecting the owner, it was both incompetence from the doctor and because mistakes were made by the patient having second thoughts.
Ability 1: Passive: Micro-sensory. The ability to see shifts within a person's movement, no matter how minor. By the reports of people who had the eyes, this ability was useful for detecting liars and great for negotiations. For the warriors, this assisted in predicting an opponent's movements and countering them. However, there have also been reports that due to the fact the people could see the minor changes in movements, the owners become paranoid.
This problem could easily be fixed if the person is particularly trained enough to handle the eyes.
Ability 2: Activate: Beyond sight. From other sources, the eyes have been used to see beyond the capabilities of a normal human. This includes being able to see beyond walls, foliage, and other things. Essentially, this is somewhat similar to having clairvoyance and just being able to see much clearer, better, and farther. Case in point, explorers and hunters had a great time using beyond sight...and thieves...and perverts.
Ability 3: Activate: Truth. The first usage of this portion of the eyes was by a psychologist. The one who used it to the fullest extent was an interrogator. The usage of truth is basically seeing a person beyond their surface. Though a bit hard to describe, one may put it as a way to, "See a person for who they really are. Understanding their heart and memories by directly looking at it completely and being able to predict what they could do."-The psychologist. Or, "Knowing where to hurt them and how they operate to know whether or not the law should be brought down on their asses."-The interrogator.
Trump card: Activate/passive: Beyond time. The exact maximum amount of time this ability could be enacted upon is unknown, however, the longest reported case deemed it to be even as long as a day beforehand. The shortest reported time occurring when the user dodges death by mere seconds.
Though it is possible to use the trump card back-to-back, in short rapid bursts, it causes confusion if one isn't careful enough. As for seeing a day in the future, the reported user suffered from mental fatigue which, though not lethal, "Was a pain in the goddamn ass."