One of the more benign Links, the Revenants are more often than not ignored by Special Unit 2 and similar agencies across the world. Revenants tend to live in large buildings such as school and live inside the walls, eating away at the foundation of the building. Revenants take their time in eating the concrete and the foundations so it takes decades to really start weakening any building, but by that time, the building is scheduled to go down if it already has not. Revenants are very protective of their environment so if the leveling of an old building comes before its time is truly up (when the Revenants have moved on) these Links can be one of the nastiest Links you will ever meet. With claws and teeth strong enough to cut through concrete like butter, just keep running until you find a suitable weapon to sue from a safe distance.
Electricity does not affect Revenants due to the non-conducive skin they have. This skin developed when buildings were first lined with electricity, as it was a natural metamorphosis in their biological development. It took a couple generations before the evolution was truly intact to repel electricity. However, for a while they were susceptible to electricity, which killed many Revenants lowering the numbers of that species of Links. Revenants travel in packs of large numbers, more often that not that number is about 16. They are very keen on hearing and are vulnerable in that they can be killed with a high frequency sound.
Method of killing: Any weapon from a safe distance will do, or high pitched sound on the right frequency will drop them all like flies.