Nice game and fits the theme well.
Respawning with powers of NPC that killed you is a great idea, usually I wanted to get killed by skeleton to shoot from distance :)
I was a little confused at the dragon that I couldn't damage it and died repeatedly, I wasn't sure if I was doing something wrong or if the game was over. But I get that the game doesn't just immediately end when you get killed by dragon, the sprite and animations look so cool and I got more time to look at them.
Art is very nice, one thing I would consider is to make background element more desaturated so that gameplay elements (player, NPCs, ...) pop up more from it.
Congrats on completing the game!