A “talisman” is a technological and/or magical device worn by an onderzite as they merge with their trichoplax for the purpose of gaining a kind of super-power while in merged form. Phew! That’s a heavy sentence. Talismans were initially developed for industrial purposes. (welding with your finger for example) Later generations of talismans were developed for adventuring and combat purposes. (like shooting lasers from your fingers, or being able to stick to walls) That’s why you see no guns in Murren’s hands in this picture.