on harry potter.

[trysha]

On Wands;

*) Wands are not exceptionally expensive - 7 galleons.
*) You can use any wand, if you don't have yours available.
*) You can still use a wand if you are holding another wand.

On the disarming spell; Expelliarmus.

This is the standard disarming spell. One can infer the following properties
about the spell from the books:

*) It seems to operate by exerting a large amount of force against an object.
*) It "flings" the object in a certain direction without damaging the object in question.
*) It can fling any object, not just wands.
*) It can be used on multiple objects at the same time.
*) It can be used against multiple targets simultaneously.
*) The more emotional the caster, the stronger the force of the fling, it can fling more than the intended target.
*) Unlike the "assio" charm, only objects in sight that the caster knows are shown as being flung.

SO, WHY THE HELL DOES EVERYONE ONLY HAVE ONE WAND?

If most of my powers were tied to having this one thing, I'd be certain to own at least two. I know how I am with my keys, I am SURE that I'd lose it or misplace it. If the death eaters were out there killing folks randomly, i'd carry at least two on me at all times.

I'd have headed back down to old 'Olly's and purchased the best wand for me that is suited to each school of magic, one for charms, one for transfiguration, one for jinxes, etc.

Heck if i were an auror, a member of the DA, or the Order of the Phoenix, I'd probably carry one "up my sleeve" or somewhere, not even Mad Eye Moody does anything like this, I would have some sort of retractable (non-magical) spring loaded string or chain attaching the end of the wand to an arm band - if it goes flying, it'll come right back on it's own like a latch key.


Wands Sources:
Wand usage remains pretty consistent through the books.

• Harry shivered. He wasn't sure he liked Mr. Ollivander too much. He paid seven gold Galleons for his wand, and Mr. Ollivander bowed them from his shop. (Chamber of Secrets)
  
• Goblet of Fire - Crouch Jr. uses Harry's wand to cast the dark mark (many sections)
  
• all books, many instances of people holding someone else's wand and using theirs - especially order of the phoenix.
  

Expelliarmus Sources:
There are 18 instances of this spell being cast in the books:

• Snape cried: "Expelliarmus!" There was a dazzling flash of scarlet light and Lockhart was blasted off his feet: He flew backward off the stage, smashed into the wall, and slid down it to sprawl on the floor. (Chamber of Secrets).
  
  
• He pulled out his wand and shouted, "Expelliarmus!" and just as Snape had disarmed Lockhart, so Malfoy found the diary shooting out of his hand into the air. Ron, grinning broadly, caught it. (Chamber of Secrets).
  
  
• Harry reached his wand just in time. Lockhart had barely raised his, when Harry bellowed, "Expelliarmus!" Lockhart was blasted backward, falling over his trunk; his wand flew high into the air; Ron caught it, and flung it out of the open window. (Chamber of Secrets).
  
  
• It was Sirius Black. "Expelliarmus!"he croaked, pointing Ron's wand at them. Harry's and Hermione's wands shot out of their hands, high in the air, and Black caught them. (Prisoner of Azkaban).
  
  
• "Expelliarmus!" Lupin shouted. Harry's wand flew once more out of his hand; so did the two Hermione was holding. Lupin caught them all deftly. (Prisoner of Azkaban).
  
  
• "Expelliarmus!" he yelled -- except that his wasn't the only voice that shouted. There was a blast that made the door rattle on its hinges; Snape was lifted off his feet and slammed into the wall, then slid down it to the floo (Prisoner of Azkaban).
  
  
• "Expelliarmus." Harry yelled, pointing his own wand at Pettigrew; Lupin's wand flew high into the air and out of sight. "Stay where you are!" Harry shouted, running forward. (Prisoner of Azkaban).
  
  
• Harry raised his wand as the spider opened its pincers once more and shouted "Expelliarmus!" It worked - the Disarming Spell made the spider drop him, (Goblet of Fire).
  
  
• Voldemort was ready. As Harry shouted, "Expelliarmus!" Voldemort cried, "Avada Kedavra!" A jet of green light issued from Voldemorts wand just as a jet of red light blasted from Harry's - they met in midair ... (Goblet of Fire).
  
  
• The room was suddenly full of shouts of Expelliarmus. Wands flew in all directions; missed spells hit books on shelves and sent them flying into the air. (Order of the Phoenix).
  
  
• Harry was too quick for Neville, whose wand went spinning out of his hand, hit the ceiling in a shower of sparks and landed with a clatter on top of a bookshelf. (Order of the Phoenix).
  
  
• many people were not succeeding in Disarming their opponents at all, but merely causing them to jump backwards a few paces or wince as their feeble spell whooshed over them. 'Expelliarmus! said Neville, and Harry, caught unawares, tell his wand fly out of his hand. (Order of the Phoenix).
  
  
• his own wand would fly out of his hand, yet Anthony did not seem to be making a sound. Harry did not have to look far to solve the mystery: Fred and George were several feet from Smith and taking it in turns to point their wands at his back. (Order of the Phoenix)
  
  
• Creevey brothers were enthusiastic but erratic and mainly responsible for all the books leaping off the shelves around them; Luna Lovegood was similarly patchy, occasionally sending Justin Finch-Fletchleys wand spinning out of his hand, at other times merely causing his hair to stand on end. (Order of the Phoenix)
  
  
• 'Oh no,' said Cho rather wildly as he approached. 'Expelliarmious! I mean, Expellimellius! I - oh, sorry, Marietta!' Her curly-haired friend's sleeve had caught fire; Marietta extinguished it with her own wand and glared at Harry as though it was his fault. (Order of the Phoenix)
  
  
• he plunged his hand inside his robes and his wand was halfway into the air when James shouted, 'Expelliarmus!' Snape's wand flew twelve feet into the air and fell with a little thud in the grass behind him. (Order of the Phoenix)
  
  
• and pointing his wand wildly at the struggling pair, he cried: 'EXPELLIARMUS!' Both Harry's and the Death Eater's wands flew out of their hands and soared back towards the entrance to the Hall of Prophecy. (Order of the Phoenix)
  
  
• The door burst open and somebody erupted through it and shouted: 'Expelliarmus!' ... by the light of the Mark, he saw Dumbledore's wand flying in an arc over the edge of the ramparts (Half-Blood Prince)