In ‘Deathly Hallows — Half II,’ Harry, Ron, and Hermione struggle large spiders, a troll, dementors, and a werewolf — all enemies they fought within the first three films.
“The Deathly Hallows — Half II” concludes the Potter saga fairly completely, and it does so by flashing again to the primary few entries in methods it’s possible you’ll not discover at first.
Within the climactic Battle of Hogwarts, Harry, Ron, Hermione, and co. struggle off trolls, acromantula (large spiders), a werewolf (Fenrir Greyback), and dementors. These are all enemies they fought within the first three films.
In “The Sorcerer’s Stone,” Harry and Ron saved Hermione from a cave troll within the woman’s lavatory; in “The Chamber of Secrets and techniques,” Harry and Ron fought off Aragog and his colony of acromantula; and in “The Prisoner of Azkaban,” the trio confronted a werewolf (Remus Lupin) and a horde of dementors.