Thor's hammer Mjolnir just proved it's the strongest hammer in Marvel Comics after it destroyed another famous Marvel weapon.

Though Captain America's shield is near indestructible, it can be broken - by Asgardians, killer robots, and even vibranium cancer!

The Harry Potter and Fantastic Beasts series introduced plenty of wizards and witches no one would want to mess with. Even the most unassuming characters were usually hiding magical power far beyond expectations. While most Hogwarts professors, Order of the Phoenix members, and Death Eaters were skilled wizards, not all could meet the nearly insurmountable challenge of taking on Lord Voldemort.