Land adjustment seconded. Go to 20 land. Cut Stormbreath, too high on the curve for this style deck. Rabblemaster wins games, so does stoke the flames. Swiftspear is amazing, go to 4. If you want to play dash guys, play Goblin Heelcutter, he's pretty legit. I don't like Berserk's Onslaught, push it to board for mirror I guess is where it sees play? I get what you're trying to do with Impact Tremors, which is more reasons to play Rabblemaster. And Hordeling Outburst. I think tokens is a better strategy for Impact Tremors as opposed to dash, so you might see what you can do with those suggestions for starters. Screamreach Brawler just....isn't an exciting card in any regard. Like, he's just ok in draft and even in this style deck, he seems underwhelming. If it takes having 2 IMpact tremors on the board already to make him worth playing, you probably just shouldn't be playing him.