The theme is way too close to Sky Blitz. Thematically they mean the same thing, but with different words. Also, I don't see how something that sounds like military strategy (Aerial Assault) could be a permanent. Sky Blitz is a spell which makes much more sense.
As for the mechanics, it looks pretty good to me. Only problem is though that since there are so few creatures with the Dive ability, this card is a bit too much tied down with Sky Blitz and
. It's a kind of card that is almost always paired up with 1-3 specific cards, and/or one specific element, which seriously limits it's awesomeness in deckbuilding. This is way too much of a "lets buff
" card than it is a complex and interesting card that all elements could use in duo and trio decks.
Summary: Theme is all wrong. Mechanics are ok, but not flexible enough.