Erumpent

An Erumpent is a magical creature from the Harry Potter universe, resembling a large, powerful beast similar to a rhinoceros. It has a tough hide that can withstand most attacks, but its most notable feature is its enormous horn. When threatened, the Erumpent's horn can release a burst of magical fluid that causes explosions or reactions in other substances, making it highly dangerous. The creature’s behavior is generally calm, but its horn makes it a formidable animal that requires careful handling and respect.