Rekki Lune is.... well, you might guess it from the ridiculous sword, but she's pretty damn strong
She can throw a car and jump really high, punch a hole through concrete... that kind of thing. I'd rate her strength level as nowhere near Goku or Superman or even The Hulk, probably more around the level of The Thing from the Fantastic 4 or Spider-man without his other powers. She has reasonable regeneration, but not to Wolverine levels, and some invulnerability, but she's definitely not bulletproof and using her strength to its fullest will damage her because her strength outpaces the invulnerability and healing. One thing she does have is almost endless stamina though, a bit like Captain America, she can pretty much "do this all day".
She's a pretty well-trained swordfighter; better than you might guess from her generally brash and reckless approach to fights. She knows a few different sword draw techniques, but her magic is mostly at the red end of the spectrum so all her projectile attacks lose a lot of power over distance, and take a long time to charge up. This is a weakness she's never really had to confront before now due to having such overwhelming brute force. She's used to punching her way out of problems, but now she's finding herself getting outclassed....
What happens next? Tune in to find out!