Poll: Fantastic Beasts: Magical 'Harry Potter' Creatures

Magizoologist Newt Scamander in Fantastic Beasts and Where to Find Them (2016) and Fantastic Beasts: The Crimes of Grindelwald (2018) puts a spotlight on the fantastic beasts of the Wizarding World. But, fantastic beasts are not new to the Wizarding World and were an integral part of the original 'Harry Potter' series that preceded the Fantastic Beasts films. Which fantastic creature,* magical or otherwise, from the original 'Harry Potter' movie series is the most intriguing? * Beasts, Non-Beings, Plants and Ordinary Animals classified for sentient ability and danger to wizards according to the Ministry of Magic (courtesy of the Harry Potter Wikia). After voting, discuss the topic here.