Princess Mermista of Salineas can breathe underwater and control water. In the Princess Alliance, there's Glimmer, Princess of Bright Moon, who has sparkle and teleportation powers. However, this is likely just the beginning of Catra’s invasions.
We see that their powers are amplified when they are together. The Princess Alliance becomes fragmented, but they unite once again in the Battle of Bright Moon at the end of Season 1. And the princesses suffer a loss in their rescue of Bow and Glimmer from the Fright Zone: They assume Princess Entrapta is dead. The complication is the new Horde Force Captain is Adora’s former best friend, Catra. For the first time in a generation, the princesses form an alliance to fight in the Rebellion against the Horde. Each princess is powered by a runestone, and the runestones keep the planet in balance. It takes some time for Adora to get the hang of her magical sword powers - transforming her into an 8-foot-tall super-strong warrior - but it’s enough to impress Queen Angella and convince the other princesses to join the Resistance. RELATED: She-Ra and the Princesses of Power Go To War in Season 2 Trailer After she stumbles upon the Sword of Protection and meets Princess Glimmer and Bow, Adora joins the Resistance, led by Queen Angella of Bright Moon (Glimmer’s mother). Adora is a former Horde soldier who realizes the Horde, and the princesses, are not what she thought.