I will concentrate my vast, powerful intellect and experience with magical systems and types of phenomena upon The works of J.K. Rowling’s magic.
The Nature of Magic
Magic in Rowling’s “England” (A strange and fey place teeming ith magical wildlife. Apparently a highly advanced world descended from a Victorian Steampunk Dimension.) apparently works totally in an offensive, active mode. The success of any spell depends primarily, if not totally, on the talent and skill of the caster. There are no passice countermeasures: the will or toughness of the target does not seem to be a mitigating factor. Some magical creatures do display an innate resistance to magic, which seems to be almost a function of their biology. Humans do not seemt capable of such feats in any way.
Other sources of magic may skew or twist a given spell or work of magic. However, this is essentially another form of active magic. The spell opposing the first is essentially attacking the original offensive spell.
Reference 1) No student has ever, in my data, resisted a skillfully cast spell, however simple, from another student. Like wise grown-up to grown-up.
Reference 2) “Avada Kedavra.” The spell of death. If cast correctly, there does not appear to be a method of evading the effects. Thus far, only one known human has survived it. This may have been a fluke due to conflicting and skewing magical effects.
Reference 3) Dragon’s hides are magically resistant. It takes several skilled wizards to stun one, though some implication is given that an accurate and bold wizard might successfully do so by striking vulnerable parts, such as the eye.
The Limits of Magic
Magical power appears very strong indeed. Though not, apparently, capable of destroying whole cities, as, in raw power terms, the entire energy output of all the wizards in the world may be less than a single modern nuclear warhead, it is capable of a wide variety of effects.
A single decently trained wizard of 12 years of age (after two years of schooling) can:
- Levitate objects, or move with sufficient force to injure/damage
- Perfom “basic” transmutation one object into a living creature
- Brew potions of unknown power, though they are of significant utility
- Care for a small number of magical creatures.
More advanced wizards have a great deal of personal power. Moreover, they can easily obtain many items of minr magic power, which essentially duplicate many modern scientific conveniences. Even young, untrained ones can accident;ly release their powre to create or destroy, however temporarily, matter and energy.
Most Wizards display no major difficulties in casting spells. They display to shortness of breath indicating a physical effort, nor any deteriation of physical form. Their mental faculties are not affected, unless the magic produced is dangerous somehow.
Most magic cannot be accomploshed without the use of a wand, but magical creatures operate differently. Since wands are crafted using the desmembered parts of such creatures, one mighty reasonably conclude that the bulk of the power is in the wand.
Even the highest mastery of magic is insufficient to create certain effects. Among them is ressurection. There are many other effects only available to the most dedicated or obsessive wizards, including instant self transformation (animagi) and immortaility. The latter must involve a huge deal of work, elsewise one would expect a great many immortal wizards.
Wizardly Genetics
This field is highly undeveloped, owing to the fact that wiards are, by and large, completed unsuited for advanced writing and technological skills, owing to their long absence of logical, scientifc thought.
In any event, the actual genetic basis of such power is unknown. Ordinary human pairings are quite capable of creating “wizards”. There does not seem to be any requirement for having any such magical members in the known past, beyond whioch any genetic basis is sketchy, at best, owing to long-term genetic dispertion. Long-time wizarding families likewise produce unmagical people. This does not have any importance in percieving and understanding magical phenomena.
The actual difference between Wizards and “Muggles” is less than clear. Though “wizards” do appear to have more innate magical power, certain wizarding injunctions do not appear to support the conclusion that all magic is genetically inherited. In particular, there is a rule against letting “Muggles” anywhere near an untended wand. In short, they must, according to the Ministry of Magic, be allowed to obtain such things. This would be a pointless law, unless Muggles could make some magical use of it. If the majority of the magic is actually in the wand, rather than the wizard, then the situation becomes much more logical.