Hades is the god of death and under the earths surface Hades is the ruler of the under world he has the power to turn invisible when he puts on his hat of invisibility which the hundred handed ones made for him so he could sneak up on the next person to die he also has the ability to conjure gold and diamonds and any other mineral He can also summon the dead.
hades power is to rule the underworld and he has it as his own rule
Hades has the power to rule the Underworld and also request animals, including humans, to be killed.
Hades was a Greek god, And the Lord of the Underworld.
Hades is the God of the dead, the Underworld, and riches.
With Hades rose also Zeus and Poseidon, when they overtook the Titans.
Hades had a "cap of invisibility." The Helm of Hades made the wearer invisible to both gods and mortals.
Hades and all other gods get their power from prayer from mortals on earth
Zeus originally was the one to have given Hades his power to rule the Underworld. Some say it was a punishment, some say Hades really wanted to take up the Underworld. Also, many have told Hades trying to take over the sky and destroy Zeus.
no , he thought they had more power
I'm not sure if you mean this "symbol" but it has the power to make anyone who wears it invisible. The symbol is a gold helmet
Hades's symbol of power, a crown, is called the Helm Of Darkness in the Lightning Thief.
He was king of the underworld in greek mythology