It feels a bit off due to the difference in key between the intro percussion/main beat and the rest of the song. I feel if the two used the same key, it'd sound just right. Other than that, this seems quite neat. Keep up the good work!
I am Anubis Necromancess. I will attack you very slowly, summon undead minions who will also attack slowly, teleport off-screen often while blocking your attacks with my scepter, dragging out the fight. I will also keep materializing into sand and cause walls and sarcophagi to close in on you, even further dragging out the fight.
And for some reason I don't know why I didn't have this ability until I get revived by some war criminal from 50 years ago but I would also change the terrain of the sand while I'm almost dying and not during the whole fight