You wanna use raging strikes earlier than right before flare. Flare macro in general is gonna slow you down.
You're gonna waste cooldowns with the defense one. Manawall/ward are practically never useful at the same time. Same with the debuffs one, you'll want to manage virus and lethargy independently; they're both debuffs but they serve very different mechanical purposes.
AM macro is actually a good call. I'd have the macro target your healer to save you time targeting.
Also, don't just always virus/lethargy during your umbral phase. No offense, but I have no idea where you got the impression that that was standard. That's a loss of dps and utility (odds are that virus/lethargy aren't gonna just happen to be useful then) Do your fire rotation, then blizz3>thunder1>blizz1>fire3>back to pewpewpew. If you get a fast mana tic you can even skip the blizz1.