The relevance of the "Elder Wand" in Harry Potter is mainly that it is a very powerful wand. Also, that its allegiance changes when somebody defeats the previous owner; according to the Harry Potter books, that is the usual case with wands. In the case of the Elder Wand, the details of the ownership changes are somewhat complicated.
Malfoy never held or owned the Elder Wand. He was the Master of the Elder Wand because he had disarmed Dumbledore, who was the owner of the Elder Wand. Harry later disarmed Malfoy, so he became the Master of the Elder Wand.
The "Elder Wand" was made by Death himself.
I am not aware that there is any ancient writing on the elder wand.
No. The elder wand is the most powerful wand in all the wizarding world.
It is merely made out of an elder tree because it's the Elder wand..
The elder wand is buried with him
Severus Snape never has the Elder wand, nor was he ever its master.
No.
I think I would prefer Dumbledore’s wand *the elder wand.* It is known as the most powerful wand in the world and Ron’s is a bit weak.
The Elder wand is unbeatable, Voldemort wanted to be all powerful and unbeatable.
There's no symbols on the Elder Wand. (Perhaps in the film, but the films have nothing to do with the book.)
the wand was made of elder wood, thus its nickname "the elder wand"