Hmm... that's pretty cool.
What about this:
L3, replacing Breath -- If you have the heart aspect, you add the damage to your breath weapon damage instead of as a separate ability. If you didn't have the heart aspect, you get it, and the extra damage is delayed by 1 set.
L6, replacing Wings -- If you have the wings aspect, you gain increased flight speed & durability; if you didn't have it, you get it.
L14, replacing Presence -- If you have the mind aspect, you gain blindsight out to 10 ft per expended maneuver level; if you didn't have it, you get it.