DPS Staff ele (WVW focus)
As far as I can see it, you have a few options when it comes to Air.
Air Training: use this to add a 10% boost to skills when you need. For example, you could cast a meteor shower, and switch to air while casting, or use Eruption→Ice Spike→Air Attunement to boost their damage when they land.
Arcane Lightning: if you have room for an Arcane skill in your build, you can use this to boost your critical damage when you need it (though it’s weaker than +10% damage).
Zephyr’s Boon: you can use this in combination with the Arcane Fury trait to get near-perma fury for yourself. It also works on blast finishers in Frozen Ground if you need it.
some other trait: extra damage isn’t neccesarily the only option. You could add some more Arcana and get Elemental Attunment, which ups your survivability a lot. Or try Lightning Rod to beef up your Static Field and Unsteady Ground. Or maybe some other useful utility. Glass cannon doesn’t neccesarily mean you have no defense at all. It’s as they say, a dead dpser doesn’t deal damage. But that’s up to you.