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.
Muscle twitches, or fasciculations,  occur all over the body. They are more easily noticed in the eyelids because those muscles are small. They can result from caffeine, stress, or low magnesium. Though troublesome, they are almost never serious and will go away in a few weeks. More severe twitches can be due to tourette's or a condition known as blepharospasm.