There were many crusaders suits of armour at Hogwarts School of Witchcraft and Wizardry under spectral possession. They could be aggressive to passers-by, but were particularly vulnerable to the Incendio and Glacius spells.
Notes and references
- ↑ "Crusade" on Wikipedia
- ↑ Harry Potter and the Prisoner of Azkaban (video game) - GBA version