Shard is very smart and receives most of its power from a crystal embedded within it, which helps its team intercept signals. This is why its backpack and head are equipped with antennas. They're also equipped with hook-like claws on their hands. They are a quick learner who can adapt and adjust to anything "almost" instantly. The circle on their face isn't an eyeball; it acts kind of like a void, some might say, but in the middle, it keeps a crystal for, well, basically anything. Shard will NEVER have a mouth, but if it has to, the crystal can be an eye. However, if it's dark, he uses his antennas for echolocation. Heck, if needed, the crystal on there facec could detach and be a lookout PS: they can't communicate properly, so they talk using signals.