what does expelliarmus do

Expelliarmus is a spell in the Harry Potter universe that disarms the target, causing them to lose hold of their wand, sword, or other weapons. The spell can also be used to knock other items out of the targets hands. It is a charm that forces the subject to drop whatever they are holding, usually a wand, and is often seen in duels. The spell is also capable of blasting the opponent off their feet when performed with more power. Expelliarmus is Harry Potters signature spell, which he learned from Professor Snape during the Duelling Club in his second year at Hogwarts. Harry quickly developed an aptitude for the spell and used it in challenging situations, such as to get Riddles diary back from Malfoy and to disarm Lockhart. The spell is also used quite often in duels between wizards, as losing ones wand gives the opponent a great advantage. In the Harry Potter universe, the spell is also known as the Disarming Charm. In the game Hogwarts Legacy, the spell disarms wands and weapons from most enemies who wield them and deals damage to all enemies, even if they do not carry a weapon.