Decent ideas, but they're kind of raw:
1. "Lifewind" - does the creature heal instead of attack or in addition to attack?
2. "Dive" - has two random elements and thus doesn't really belong to Air, I think. Although you could pack the Dive version with a bunch of Dragons to be sure to get a Dragon to dive. Also, would multiple incoming attacks always Dive a creature that hasn't already been Dive'd? Or would it be possible to double-Dive a creature?