Just finished it, what a great experience. You successfully built a souls-like mini game. What that means to me is that you created a game that requires some level of mastery over the mechanics you created. I think you can ignore alot of feedback including mine because in the end you accomplished what you set out to do. But if you'd like some feedback from a souls veteran, I've got you fam.
1. I-frames are just a tad too short and/or rolling/rolling recovery is a tad too slow. I have the urge to get up and close with Nalania, but I could never avoid more than one strike from her three-strike combo. The current mechanics reward those who keep their distance. That's is definitely ok if that is what you are going for.
3. Somethings aren't quite right with the stagger mechanic. I think there needs to be an extra millisecond or two of forgiveness because it was common to take damage after the enemy had been staggered.
4. Nalania's lunge attack has the potential to send player flying. I think this also relates to another thing I noticed where the enemy can really just bully the player with just their walking. Maybe the hit boxes just need refinement? This adds to rewarding players who keep their distance.
Great game and I really enjoy watching the making of video.