Encounters

At times, non-beings like Boggarts and Dementors may appear in the castle. If you know the appropriate spells you will be able to banish them. Be the first to do so and you will receive bonus house points.

On occasion, more dangerous creatures will appear. There are numerous charms and jinxes required to combat these creatures. When they appear, a notice will be sent out and if you know the proper spell, you can travel to that channel and help fight against them. Fighting these creatures can help you earn XP and maybe even money and items if you're lucky.

Training
Hogwarts will be holding special training sessions for you to practice your spells against a variety of dangerous creatures. You can use the training tokens you receive with your daily allowance to take part.

Boggarts
Sometimes Boggarts will appear within the halls of Hogwarts. If you know the Boggart-Banishing Spell you can help get rid of them.

Dementors
A few Dementors are still lingering around school grounds. Learn the Patronus Charm to scare them away.