Do what you will.
An exemple of strange stuff that happen is that a magitian of mine, an elf with exceptional talent but no magical education at all, she developed hers talent on hers own around some simple concept:
- magic is life and life is magic;
- magic is born from the heart (intended as coscence, spirit or mere aura) of the living and growes on emmotion (hermetism is quite alien to her);
- magic has three domains and three spheres appartence;
- working life require to commune with life around you;
- spirits are living being, with their own emmotions and feeling;
- summoning is asking for assistance, the summoned spirit is doing you a favor by responding to your plea;
- magic is neutral, its user is responsible of the way it's used and what it's used for.
The paradigma is centered around the concept of the "Whole", also known as "Gaea" or "Gaia", which rapresentes the interactions betwen living beings, the magician drawes mana from the whole shaping it into spells as an artistical expression of self; the whole is divided in the three domains in which life takes place (earth, air and water) and in the three spheres in which life is divided (plant, beast and man for setience), this domains and spheres aren't mutualy exclusive (for exampledragons belong to both beast and man spheres, swamp to both earth and water domains) and their overlapping defines the various form of life.
Obiously six spirit types are difficult to squize in five summonable types, however when magic is used it is used with a porpouse (very important, acting without knowing what you want leades to disappointment, failuer or even troumble) and is this porpouse that determines the type of spirit summoned, the Spheres and Domains determine the look (a guardian spirit of water domain and beast sphere could look as an acquatic animal, a guidance spirit of the air and beast could look like a bird); the magician him/her-self is a spirit (just like any living being) and when summonig is involved it's always a deal betwen equals, binding is akin to slavery because it imposes unatural limitation to the spirit, it must be performed only due dire circustances or special porpouses that need prolonged services and compensation for the deprivation of freedom should be given to the spirit if possible (exception is the binding ritual required to summon an ally spirit, as the whole process is seen as giving birth to the spirit).
So:
Combat: Guardian
Detection: Guidance
Health: Man
Illusion: Air
Manipulation: Task
Drain: Charisma for Conjuration, Intuition for everything else
Following hers own "tradition" she must either research a formula by herself or learn from a formula of another tradition (hermetic mind asset is alien to her but she can their formulas as instruction sets and rappresentation of the mana flux of the spell) by making the usual learning test but capping the hits of a single roll with the relevant Magical Background knowledge skill (she must also be able to read the formula, things written in japanese will be just line on paper to her); she herself doesn't produce any formula researching the spell formula rapresentes just the study required to learn the spell.
Hers lodge is actualy a large garden/small park in which she growes various plants (doubles as food source), it's inhabited by a small group of free spirit which chase away unwanted guests (hers lifestyle expenses are actualy the budget for mantainance plus various things to keep the spirits happy).
As final note hers "tradition" stresses harmony and respect of life, but this doesn't mean she's not able to use combat spells, wanton violence and uneeded bloodshed are to be avoided but life is also made of predators and preys, it's just natural to fight for survival.