Princesses of Power
Origin - Princesses of Power
While She-Ra is a very unique powerset in her world, the Princesses tend to be linked and have specific themes. She-Ra's power comes from the Sword of Protection, primarily, and what it has unlocked within her. It could, technically, be considered a gemstone, or crystal, which is what the other Princesses use, though. That would be -technically-, but technically works.
For the rest of the Princesses, each of their Kingdoms possess a stone of power. These stones are roughly human-sized or a bit bigger, and radiate energy of some specific type. It could be raw nature, aquatic energy, fire, or a number of others. The Princess attunted to it is granted power unique to that gemstone. Sometimes the other Princesses can over exert their energy, and require access to their Gemstone, or something resembling their element, to recharge.
The Princesses power tends to come in pastel, beautiful, energetic ways. When nature magic is used, there are blooms of flowers, along with the terrifying rushes of vines and thorns, if that is the intent, for example. Rainbows and harmonious noise is common, as it is a force of pure good (Or is meant to be. Anything can be twisted!). Each gemstone is unique,and the power granted to it's Princess is as well, though the above tends to stick. The Princess Alliance, while still fighting a war, brings a sense of beauty to their battle, whether they like it or not. Heck, She-Ra shoots rainbows!