Some special things that come to mind: (1) that it belonged to one of the founders of Hogwarts; (2) that it appears in times of need to "true Griffindors", people who show certain of the characteristics that Griffindor prized (such as valor); (3) that it absorbs things that make it stronger.
Harry Potter told Neville Longbottom that Nagini had to die so Neville Longbottom decapitated her.
Yes, he dives in a freezing pool of water to retrieve Godric Gryffindor's sword.
In Harry Potter and the Deathly Hallows, Bellatrix Lestrange tortures Hermione Granger at Malfoy Manor for information on Godric Gryffindor's sword.
The house was named after Godric Gryffindor. Who is a famous wizard and is introduced many times especially in Harry Potter and the Chamber of Secrets and Harr Potter and the Deathly Hallows.
He is played by Tom Hank's son Tom Hanks Jr.
Godric Gryffindor.
Harry used the sword of Godric Gryffindor.
The sword was Godric Gryffindor's sword.
A broken sword can be a symbol or defeat, or of peace.
celestial bronze
With Godric Gryffindor's sword...
Each of the founders have an item that was important to them. For Godric Gryffindor, this was his sword. He enchanted it so that if a true Gryffindor ever needed help it would come out of The Sorting Hat (which also belonged to him).
Ron Weasley stabbed it with the sword of Godric Gryffindor.
Harry Potter told Neville Longbottom that Nagini had to die so Neville Longbottom decapitated her.
Godric Gryffindor
Yes, he dives in a freezing pool of water to retrieve Godric Gryffindor's sword.
The house of Godric Gryffindor at Hogwarts,the house stands for bravery.