I've seen Expedition aggro decks in a variety of colors, but I don't think I've seen a Skycrag Aggro deck before. I was inspired to design this by Prowling Amaruq, which is an amazing 2 drop which now even seeing use in Throne. I think most of these cards are self-explanatory for an aggro deck, but a few notes:
Skycrag Blueprints - this deck has 2 4 drops and 3 3 drops, so it needs a bit of extra power.
Midchief Salus - An underrated card, a 3/2 Quickdraw for 2F is quite good anyway, and then playing it on turn 4 and giving everyone on your team Warcry can be game winning.
Edits: Added a Justice Sigil so that you can get Privilege of Rank with the Shorthopper.
Crafty Occultist - Sometimes the faction requirements can be hard even in this deck, but generally you want to cast this later anyway.
Hidden Crusader - this card is surprisingly good. It survives Cover From The Storm, and can also be a source of card advantage as well.
Shorthopper - most of the time, this is a 4/4 flyer for 4 that stuns an enemy unit when it comes into play. If you think you can make it to six mana, you can also put other spells in the graveyard. Great card (even without Davia).
Enjoy!