It's aggro, any start with 2-3 power and turn 1+2 drops is a good start. You need 2 green first, then 2 red. Any power past 4 is a waste, hence
Emblem of Kodosh and
Emblem of Shavka. Look for starts with
Akko, Inspired Artist especially, and if you get him and
Gold-Plated Revolver it's auto-win if he sticks.
Forgemark Scrivener is the unsung hero of the deck, I can't believe this card is common, it should be legendary. Opponents often underestimate it and waste removal on other units.
Jishu, the Burning Brush can pull every weapon from the deck, and
Hanaka, Loremaster any relic weapon (including versatile), depending on your needs. This explains the 1-ofs, it's almost like a market for weapons. It helps keep the cost of actual market cards low since you've already lost if you have enough power to use more expensive market cards.
Keep in mind that
Camrin's Sniper Rifle counts for mastery.