[Power System] + [Initial Setting]
The Harry Potter world is one centred around the concept of magic, however other than certain figures such as Albus Dumbledore and Voldemort who are clearly above the rest, the division of power is not very clear throughout the ranks.
As this is my first fan fiction for Harry Potter, I decided to add my own power system to divide the magic power of wizards and witches of the world into a clear division of power. To allow this, I will focus on the concept of the 'magic core' of a mage (witch/wizard), where the stronger the magic core is the greater the base magic power of a mage is.
Meaning someone with a magic core level of around Dumbledore's level can not be disarmed of his wand or have his shield shattered from a random spell of a random Death Eater without the assistance of special spells or equipment. Listed below, the initial power system I drafted is written so readers can refer to it for some clarity throughout the story.
[Magic Core Ranks]: (Original)
[White Colour Magic Core] - [Usually young mages who just awakened magic through the 'magic accident'].
[Green Colour Magic Core] - [Through constant practice and exhaustion young wizards and witches will have unknowingly strengthened their magic cores and experienced a magic power sublimation in their bodies at some point during ages 11 to 12 (First Year Hogwart Students) and reached a qualitative and quantitative change in their magic core].
[Dark Green Colour Magic Core] - [After a period of further training, by the age of 14 to 15 (Third or Fourth Year Hogwart Students) a mage's magic core will experience a qualitative change, the core gains a darker colour, the gaseous magic power within the core compresses and increases in a capacity as the core itself strengthens].
[Blue Colour Magic Core] - [Through extensive periods of training, a wizard/witch's body reaches another period of magic power sublimation and the core expands, strengthens and the magic power further compresses to allow more capacity. (Fourth Year to Seventh Year Hogwart Students and beyond) most mages will be stuck within this stage for their entire lives.]
[Dark Blue Colour Magic Core] - [It is at this point that mages become actively aware of the magic cores changes, the elite mages will most likely be stuck within this stage for their entire lives]. (Many Auror are at the mid-level of this rank)
[Purple Colour Magic Core] - [Centuries for the greats and maybe decades for geniuses later the magic core will reach an unprecedented bottleneck, after breaking through, the magic core will expand, strengthen and the magic power itself will compress to a near structure-changing state, nearly turning from a gaseous state to a liquid state]. (Both Voldemort and Dumbledore will be placed within this rank, however, both will be said to have tainted cores, with the colour red actually slightly visible within their cores. It is assumed that the four founders of Hogwarts had reached this stage or even crossed it to an extent).
[Red Colour Magic Core] - [The goal for most powerhouses in the past, with only a few reaching it, turning the almost intangible form of magic power into a liquid state, allowing the magic core to be dyed in the colour red]. (The Four Founders state is placed here).
[Golden Magic Core] - [Merlin????]
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William himself will be an anomaly to this power systems restrictions to an extent due to his starting point, this is an advantage I decided to give him to allow my ideas to flow better. The extent to which William is an anomaly is that he will be aware of his magic core very early and will have a clear method of strengthening it unique to his body.
Not all magical beings follow this system, for example, Dementors, Dragons and other creatures may follow more natural systems like having magical power simply temper their bodies.
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The protagonist William Reginal will be transmigrated into the Epping Forest in London at two years of age as an orphan, with the knowledge he gained he will set himself up and from there prepare till he is ready to come in contact with the Magical World fully, (the age of 11). The protagonist will also be attending Hogwarts a year before the 'Golden Trio' (Hermione Granger, Ron Weasely and Harry Potter) in 1990 whilst they begin at Hogwarts in 1991. William will not follow the usual route of many fan fictions of directly befriending the Golden Trio unnaturally in hopes of getting an edge. William has his own goals, beliefs and discipline, he doesn't lower himself to petty schemes like coaxing children (his mental age is higher).
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Please note that the flow of the storyline may have some changes, for example, some deaths may not occur/have occurred, may be prevented, characters may develop in an unforeseen direction and more. Everything will be controlled and not drastic, but changes will occur. As the protagonist will not force himself to follow the canon timelines directions always, and be scared of making his mark.
Another thing to note will be that the story will not only focus on the British Wizarding world, perhaps initially it will, however as the protagonist William develops and his worldview expands, so will his contact beyond the known, he also won't be scared to explore and act beyond his comfort zone when it comes to adventure. The Harry Potter world has a lot of potential for expansion with Magic and I intend to exploit it to the fullest over time. Hope no one finds dislike in this.
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The last thing to pay attention to is Williams 'system', which will not be something overpowered like instantly helping him skip core ranks with points, or summoning an army out of thin air. It will be a quiet guide at the start. Helping him fine-tune areas slowly, and limit bottlenecks, give him the tools to strengthen his standing and more. His initial boost or edge will be from the boons he receives from the 'unimaginable'. Also, there are differences in core strength. A death eater with a blue core can easily destroy a few blue-core Hogwarts students.
CREATORS' THOUGHTS 
Cosmic_Writer
Cosmic_Writer Any feedback please feel free to leave below, hope I managed to raise your interest in my work!
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