Magical Girls

The Shattering
Before the universe begun there were two Goddess's, Goddess of Evil and Goddess of Good. for as long as they existed they would wage war among each other until eventually they destroyed each other shattering themselves as well as giving birth to the universe in the chaos. Shattered Pieces of the goddess's remain throughout the universe any female who obtains a shard will fuse with the shard and be bestowed with a fraction of the goddess's power this results in either a Light Magical girl or Dark magical girl depending on if which goddess the shard derived from, billions of these shards now known as "Mana Stones" or "Power Shards" can be found throughout the universe. these shards are worth a great deal of money as they can also be used to power Magical Technology or MagiTech as an infinite power source.

Magic Types
the magic bestowed upon a Magical Girl depends on the goddess the shard comes from, a good example are the sins and virtues, The sins come from the Goddess of Evil and Virtues from Good, all powers a magical girl gets are based on the power of the goddess it originated from. however some magical girls can share a type despite being a light or dark magical girl, an example type would be a Weapon Magical Girl as both goddess's possessed the ability to summon weapons.