Actually, I like this.
Though it may lack some things in some of its parts here and there, I actually thought this was pretty good. I feel like if I were to play Pokemon Emerald right now and fight Deoxys, this would be the song I hear. I think it sounds a lot like it to be honest. I am unsure if this was intentional or not, but I like the idea.
The only major flaw in the song is somewhere in the beginning. I feel like this should be more of a loop song, but the beginning is too silent and I can't really get into it. My apologies, but I would suggest to keep the high beat of the song at the beginning like the rest of the song is.
Anyways, I liked this, and my score is 7/10 and 4/5.
I expect more of you, good sir. Keep up the good work.
Have a nice day, sir.