Aux Magic System

How does mana or magic work in my world?

A:Magic is tied to magical cores that strengthen by usage.

Magic cores go from mist that will turn liquid, then will crystallize. Then once you have 10 crystals you have to compress them into a star core. Star core is the goal

Tag had 5 star cores and 5 crystal cores

Mc had 1.5 crystal cores

after baptism 2.5 crystal cores