"Mimic"

Mimic is another example of a creature drafted into the Dark Hunters. Mimic spent most of his life with a companion from their native island. Their island had suffered some natural disaster long ago, so they lived together, working to survive. One day, Mimic learned of his power, a useful talent that let him "mimic" any feat he saw. Shortly after this, his companion disappeared. Desperate, Mimic searched for her for a long time until he was approached by "The Shadowed One", who told him that if he joined the Dark Hunters, The Shadowed One would do everything he could to find her. Mimic agreed quickly. He has served ever since, and will likely do so for some time to come. The Shadowed One always keeps him away from Odina to prevent him from discovering his companion captive within the dungeons of the island.

Mimic has what "The Shadowed One" calls "photographic reflexes", if he watches any creature doing any kind of physical feat, he can replicate it, perfectly, instantly, and without practice. Show him a skilled marksman, and he will become a master marksman. Let him watch skilled swordplay for even a few moments and he will become a master of the sword.