I love the song! A little too goofy for my taste, but good nonetheless. Reminds me of a Rare game from the 90s like Banjo-kazooie.
The spellcasting sounds like a healing sound effect. The heavy step could use a little more low end (to make it sound deeper), and finally, I feel like the unit lost sound effect didn't need that much reverb.
Overall this is a solid submission. Great work.