The legend of the Deathly Hallows is one of the most well-known stories in the wizarding world. Passed down through generations, it tells the tale of three wizard brothers who encounter Death and are each granted a powerful magical artifact: the Elder Wand, the Resurrection Stone, and the Invisibility Cloak.-

And what all 3 of these powerful items have in common is that they are able to perform extraordinary feats far beyond what is typically seen in the Wizarding World.

The Resurrection Stone is said to be able to bring the dead back to life. The Elder Wand has the ability to conquer all other wands, and The Invisibility Cloak is able to hide whatever - or whomever - is beneath it, even in circumstances in which typical invisibility charms do not work.-

Together, these items make up the Deathly Hallows, often represented by a symbol that includes all three.

These items DO exist, that much can be confirmed, but it's their backstory where things get a little foggy