Erumpent horn

An Erumpent horn is a powerful magical object that comes from the Erumpent. The horn contains a deadly fluid that causes whatever it is injected into to explode. They are highly prized as potion ingredients, but are listed as a Class-B Tradeable Material.

Luna Lovegood's home was destroyed by an Erumpent horn that Xenophilius Lovegood claimed to be the horn of a Crumple-Horned Snorkack. He proudly displayed it despite the warnings given to him by Hermione Granger, and she was forced to blow it up to escape Death Eaters shortly after Christmas in 1997.

Appearances

 * Harry Potter and the Deathly Hallows
 * Fantastic Beasts and Where to Find Them