Only characters with an Arcane Background Edge can take this Hindrance.
The caster is dependent on a physical item to activate his powers. The Talisman might be a magic staff, a sacred symbol, a wand, a weapon, or any other transportable item.
When caught without it, he subtracts 1 from all arcane skill rolls (–2 as a Major Hindrance), and is Stunned if the roll is a Critical Failure.
Replacing a lost Talisman depends on the object, but should usually require getting it back from whoever took it. If it was destroyed, the Game Master should work with the player to figure out what might make a suitable replacement and how it might be gained.