Edit Shadow Key. A shadow key is an item found in gold chests in the dungeon. Shadow keys are required for unlocking a shadow chest. All shadow chests are originally found locked. Unlike a golden key, shadow keys are not consumed when unlocking a chest.
Muscle twitching, also known as muscle fasciculation, is marked by small muscle contractions in the body. Your muscles are composed of fibers, tissues, and nerves. When a nerve is stimulated or damaged, it may cause your muscle fibers to twitch. Many twitches experienced in your body are common and may go unnoticed.
But take a breath. There are many things that can cause muscle twitching, including fatigue, anxiety, or even a pinched nerve in the spine. Muscle cramps, too, are very common, and can be caused by such things as over-exertion or even dehydration.