Same magic, different rules
In fantasy, not all magic is the same magic. Read enough works and one 'mage' might hurl fire, mend wounds, or demand a price.
I found that sorting them into three branches — elemental, divine, and dark — makes moving between works far smoother. Here are the branches.
Elemental — the basic skeleton
The most familiar branch is elemental magic: fire, water, wind, lightning, earth. Most magic systems start here.
Its strength is intuition — readers know fire burns, water douses, lightning is fast, with no explanation. That's why most 1st-Circle entry spells are elemental.
Divine — power borrowed from a god
The second branch is divine magic. Where elemental magic spends the mage's own mana, divine magic borrows power from a god or transcendent being.
So it usually comes with conditions — faith, oath, worthiness. Healing, blessing, purification, and turning undead are its specialties, and breaking the deity's will often costs the power. Priests and paladins carry this branch.
Dark magic and curses — power with a price
The third branch is dark magic and curses, defined by one rule: there is always a price — life force, soul, lifespan, sanity as fuel for powerful results.
Hex magic favors duration, latency, and chains over burst power, and a curse, once set, is hard to undo — the opposite pole from elemental magic. Often taboo, it makes the caster carry the risk.
Circles and ranks — the yardstick across all three
Interestingly, all three share a ranking system. Within the magic system, elemental magic is measured in circles — 5th, 9th, power and reach growing with each step.
Hex magic splits similarly by hex rank, and divine magic by divine standing. Different branches, but they all share a ladder of growth.
Why three branches hardened
I think the three settled in because each fills a different narrative role: elemental for combat firepower, divine for recovery and ethics, dark for taboo and temptation.
With all three in one work, combat, healing, and corruption run at once — a handy tool for laying a world's light and shadow in a single stroke.
My take — when reading a work
Opening a new fantasy, I first check which branch its magic leans on. Elemental-heavy suggests combat and growth; strong divine suggests religion and ethics; dark up front suggests a darker tale of corruption and price.
Most works mix all three, but watching where the camera lingers pins down a work's character fast. It's the reading habit I built while sorting the magic entries here.