What does Hades carry in his hand?

Hades, the Greek god of the underworld, is often depicted carrying a scepter or a staff, symbolizing his authority over the dead and the realm of the underworld. In some representations, he may also be shown with a key, which signifies his role as the keeper of the gates to the underworld. Additionally, Hades is associated with the Helm of Darkness, which grants him the power of invisibility.