The correct name for this spell is the "Patronus Charm"
It is a very advanced and difficult spell.
To cast it, you must concentrate very hard on your happiest memory while saying the incantation "EXPECTO PATRONUM".
This conjures a silvery-white animal (e.g. Harry's is a Stag) Which will drive away dementors--they will feed off it, instead of you.
I found original Harry Potter Spells on movies.
in the 7 book when he goes in snapes memory
The Patronus that led Harry to the sword was Snape's Patronus.
Wikipedia has a list of many of the spells; search for "Harry Potter Spells". Several fansites also list the known spells; for example, the Harry Potter Lexicon (hp-lexicon.org). Please note that none of the spells work in real life; they are part of a fantasy story. Also, not all details about each of the spells are known; the sites mentioned, and others, only list details that appear in the books, for example, the exact words to say, if it has been mentioned in the books.
Go to seargh and type in Harry Potter.
I found original Harry Potter Spells on movies.
One can find information about Harry Potter Spells on the Internet. Sites like HarryPotterWikia and FunTrivia tells you all sorts of information on all the spells used in Harry Potter.
in the 7 book when he goes in snapes memory
If you mean what are the spells used in the whole Harry Potter series then you'll find every single spell here in the related link. ___ Some of the common ones are Accio (to have something come to you), Incendio (to catch something on fire), Alohomora (to open something), Expecto Patronum (to call your patronus), and Expelliarmus (to disarm an enemy wizard)
The Patronus that led Harry to the sword was Snape's Patronus.
Go on Wikipedia, they have a list of all the spells and their uses.
Many,I'm sure you can find all the spells on google. Hope this helped:)
When Hermione's opened her bag and told Harry where they were [The Forest of Dean] the portrait of Sirius's Godfather that was in her bag heard and told Severus Snape via his other portrait in Snape's office. Snape then went to the forest and sent his patronus which Harry followed.
It is not a hologram, but a patronus (spell to defend against Dementors and send messages to other wizards in no time). The deer patronus belongs to Snape, and very specifically to Lilly Potter (Harry's mum). Snape loved her so much that he took over her patronus as a sign when she was killed by Voldemort. The patronus represents itself to Harry and helps him find the real sword of Gryffindor.
It is a doe because Snape always loved Harry's mother, Lily, and her patronus was a doe. His never changed as he always loved her, as shown in the final book. Lily's patronus is a doe as it is complimentary to James Potter's stag.
I don't see why that would be "urgent". Spells, as shown in Harry Potter for example, are ficticious; they won't work in real life. Thus, you won't be able to cast any spells that actually work in real life. You can find a list of spells used in Harry Potter - and once again, please remember that these don't actually work - in the Wikipedia. Just search for "Harry Potter spells". - Or perhaps I misunderstood your question; in that case, please clarify.
Yes, the Harry Potter books. If you want more details about each spell and potions, please note that they are fictitious and won't work as in the books, so you can just as well make up your own spells and potions. In any case, there are references on the Web that collect all the details known from the books. You can find some things in the Wikipedia, or in the Harry Potter Lexicon.