I built this just for fun but ended up going 7-2, 7-2, 6-3, 7-2 with it. And it's a very fun and interesting deck to play. :)
This deck assumes Scourge of Frosthome is the most broken thing you can do, and maximizes its chances of getting there:
Plan A: Discard Scourge, Grasp it into play
Plan B: Kindle into hardcast Scourge
Plan C: Celestial Omen and target the 6-drop with 4 x Unstable Form (you can fetch one with the Omen so this is just a 2-card combo). The 10-drop will always be Scourge. (credit to gamergc on reddit for figuring this out)
Plan D: Outvalue your opponent with Feln Cauldron and chaining Celestial Omen into itself.
Plan E: Wait until your opponent's 1-cost spell gets them a Fallen Oni and puts the Scourge in your graveyard to Grasp back.
Trail Stories isn't a bad idea but it's rough on the influence and it's hard to find room. I could see going +2 Trail Stories -2 Suffocate, since the Sand Warrior you get is sort of like a bad removal spell (and the format has become slower).
Edit: Hm, I've been seeing a resurgence in aggro decks today, if that's representative of a metagame shift then I could see cutting one of the Scourges, since your value cards are usually enough to win in that matchup.