There are different levels to magic potency and quality, every being or species has a hard cap but is capable of being broken due to extenuating circumstances. For example a human getting a contract with a different race, and acquiring their magic for themselves.
The most basic access to magic is mana it is the most watered down and digestible energy there is. Here are the different sources magic. A being is also ranked via tiers
Magic/tiers
Mana/0-2
Essence/3-5
Aether/cosmic/6-8
Rules/9-11
Laws/12-14
Primordial/15-17
Eternal* a rank above primordial granted by elementals
Origin- only one race has this authority and that is elementals
Humans are only able to access lower tier essence, due to being weak, they may get higher magic through other means but they also have a power limit, which could also be bypassed via the same methods
Mortal
Awakened-equal to new werewolf or vampires
High- equal to adult vampires or werewolf
Arch- equal to a older and seasoned vampire werewolf
Transcendent- equal to a local master or alpha
Races rankings/ages
Dragons-
Hatchling
Wyrmling
Youngling
Juvenile
Young adult
Adult-5k+
Mature
Elder-50k+
Wyrm-200k
Old wyrm-500k
Ancient -1m+
Twilight -?
Vampire
Baby-5 years old
Young-10
Adult-30
Mature-100
Old-local master vampire-200
Elder-500
Ancient-1000
Grand-5000
Progenitor-10k
Primordial-50k+