I'm very curious as to the Air shard. A buff to airbourne seems good, (I would assume an entire field buff, so that air as an element is most benefitted, rather than any deck with dragons - which was the problem with my plan, to have a spell enabling the creature to target anything during the turn itself, which could be modified to specific creatures/perms (such as bonewall), but also to attack opponents directly, like momentum only sundial/SoSa would not effect)
I guess whether it protects or buffs them will decide whether air becomes more controlling, or rushing.