Spellcasting – Draft 1

I’m working on developing a system that could be used by the Harry Potter and Quidditch Society on campus as a game, based roughly on the concept of the Defence Against the Dark Arts class, combined with a wizard’s duel. I’d originally hoped to use an existing system, but I wasn’t able to find any that I liked, so I started tinkering with building my own. Without further ado, here’s what I’ve got so far:


  • All duels will be supervised by a referee
  • Each player has a certain amount of health, called for the sake of clarity ‘points.’ The amount of health a player starts with is currently undetermined, and so will be left to the referee. This number should be stated before the match begins.
  • Players can cast one spell per turn.
  • The number of turns in the match is left to the discretion of the referee.


Casting spells requires a wand of some sort, and each spell will have a wand motion that must be performed correctly for the spell to be cast.


  • Expelliarmus
    • Disarm opponent – they cannot cast a spell the next turn
  • Stupefy
    • Damage opponent – one point
  • Confringo
    • Sets opponent on fire – they take one point of damage per turn


  • Protego
      • Blocks attacks, lasts one turn
  • Protego Totalum
    • Blocks attacks, lasts two turns.
    • (This spell will require a more complex casting motion than Protego)

Spells can also be dodged, though whether or not dodging will actually work is up to the referee. Also to the referee’s discretion is the ability of the players to use the local terrain as cover.


  • Episkey
      • “Heal minor wounds”
      • Player recovers 1 point of health
  • Aguamenti
    • “Summon water”
    • Puts out flames on the player, ending the 1 damage per turn effect of being hit by confringo


Note that this system is less settled than the other, and, depending on the referee, may not be used at all.

  • Avis
      • Summons birds
      • (When used with oppugno, each casting counts as a single creature.)
  • Oppugno
    • Summoned creatures attack, for a total of one damage each.
  • Piertotum Locomotor
    • Brings statues and armor to life.
    • Each summoned statue/armor (one per casting) can block a single spell, at the discretion of the player who summoned them.
  • Depulso
    • (This is technically a misuse of the spell, which in the movies just sends stuff flying away, but it’s the ‘Banishing Charm,’ so I’m using it here.)
    • Banishes a summoned creature.