The Elder Wand is said to be the most powerful wand ever created and it is highly sought after by powerful witches and wizards. It is said to have the ability to make the user invincible and grant any wish.
The Resurrection Stone is a magical stone that has the power to bring back the dead, though only temporarily and in spirit form.
The Invisibility Cloak is a cloak that makes the user invisible.
In the Harry Potter series, Harry accidentally becomes the master of the Elder Wand and discovers that the Resurrection Stone is embedded in his Invisibility Cloak. With these powerful artifacts in his possession, Harry is able to defeat Voldemort and ultimately save the wizarding world.