This system was developed by Catalina Cavales and is copyright © 2004. You may not use it elsewhere without expressed written permission! If you have any questions don't hesistate to email Catalina Cavales or send an Owl Post.
Rules
Students cast their charm and dice is rolled to see if the student can successfully cast their charm. The chance a student has to correctly cast their charm depends on the difficulty level of the spell and the student's year. The following chart lists the chances for each spell.
| Student's Year | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Level A Spells | 12.5% | 37.5% | 62.5% | 75% | 87.5% | 100% | 100% |
| Level B Spells | 0% | 12.5% | 37.5% | 50% | 62.5% | 87.5% | 100% |
| Level C Spells | 0% | 0% | 12.5% | 25% | 37.5% | 62.5% | 87.5% |
| Level D Spells | 0% | 0% | 0% | 12.5% | 25% | 50% | 75% |
| Student Year | Charm % |
| 1st years | 12.5% |
| 2nd years | 25% |
| 3rd years | 37.5% |
| 4th years | 50% |
| 5th years | 62.5% |
| 6th years | 75% |
| 7th years | 87.5% |
| Hit by a Level A charm | 1 point |
| Hit by a Level B charm | 2 point |
| Hit by a Level C charm | 3 point |
| Hit by a Level D charm | 4 point |
| Vs. Student -3 or more years | Suffer No points |
| Vs. Student -2 years | Suffer 25% points |
| Vs. Student -1 year | Suffer 50% points |
| Vs. Student in the same year | Suffer 50% points |
| Vs. Student +1 year | Suffer 50% points |
| Vs. Student +2 year | Suffer 75% points |
| Vs. Student +3 or more year | Suffer 100% points |
Offensive Dueling Spells
| Level A Spells | Effect |
| Densaugeo | Makes a person’s teeth grow larger |
| Expoximise Plancher | Makes someone’s feet stick to the floor |
| Expelliarmus | Disarms a weapon or wand from someone |
| Frenonectio | Fastens someone’s shoe laces together |
| Rictusempra | Makes a person feel like they are being tickled all over |
| Silencio | Makes a person unable to speak |
| Pousikus | A gust of air hits the target and shoves it back |
| Level B Spells | Effect |
| Tarantallegra | Makes someone’s legs dance crazy |
| Engorgio | Causes the target to swell in size |
| Rudicio | Causes the target to get smaller |
| Furnunculus | Makes boils appear on someone’s face |
| Impedimenta | Slows someone down |
| Infrunites Poematic Eloquor | Causes someone to speak in silly rhymes |
| Flippendo | A burst of energy hits the target and flips it over backwards |
| Level C Spells | Effect |
| Insidio | Forces the target person to immediately sit down |
| Locomotor mortis | Makes a person’s legs lock in place |
| Chaleur baton | Makes a person's wand so hot they must drop it |
| Petrificus Totalus | Causes a person’s entire body to become imobile |
| Avis Attaqikus | Several birds shoot from the caster’s wand and peck at the target |
| Vermillious Attaqikus | Creates vermin who swarm the target |
| Florikus | A blast of cold air erupts from the wand and knocks the target over |
| Level D Spells | Effect |
| Confundus | Totally confuses the target |
| Reducto | A blast of energy blasts the target backwards |
| Relashio | Sparks shoot from the caster’s wand and set the target’s clothing on fire |
| Stupefy | Stuns and knocks out a person |
| Flurrifikus | Balls of ice blast from the caster’s wand and pelt the target |
| Infantaneous | Causes the target to behave like a baby |
Defensive Dueling Spells
| Spell | Effect | Useful Vs. |
| Protego | A magical barrier protects the caster from changes to the body | Densaugeo, Expoximise, Plancher, Expelliarmus, Frenonectio, Rictusempra, Silencio, Tarantallegra, Engorgio, Rudicio, Furnunculus, Impedimenta, Infrunites Poematic Eloquor, Locomotor mortis, Petrificus Totalus, Confundus, Stupefy, Infantaneous |
| Feu Résistez | A barrier protects the caster from intense heat | Relashio, Chaleur bâton |
| Froid résistez | A barrier protects the caster from intense cold | Pousikus, Florikus, Flurrifikus |
| Bête ami | An aura surrounds the caster making them appear friendly to all creatures | Avis Attaqikus, Vermillious Attaqikus |
| Fortuikus | A force protects the caster allowing them to stand their ground | Flippendo, Insidio, Reducto |