Youre getting more than your moneys worth no matter which deck you choose, and all the decks contain plenty of great cards that see play throughout the format
Yoshimaru, Ever Faithful + Reyhan, Last of the Abzan Any deck with Yoshimaru, Ever Faithful in the command zone looks to be aggressive
These go in virtually every Brawl deck I build in their colors: Abrade Acidic Slime Bitter Triumph Bone Shards Bridgeworks Battle Cathar Commando Duress Explore Feed the Swarm Fell the Profane Fight with Fire Galvanic Discharge Ghostfire Slice Into the North Journey to Nowhere Kami of Bamboo Groves Llanowar Elves Lrien Revealed Make Disappear Malakir Rebirth Patriar's Humiliation Pinnacle Monk Selfless Savior Sink into Stupor Strangle Thieving Aven Touch the Spirit Realm Wash Away Witch Enchanter Witness Protection Of course, I can't leave you high and dry without a decklist or two to get you started, can I
If your deck isnt particularly fast, or you want to draw cards on not your turn (Im looking at you, God-Eternal Kefnet players), getting to draw a card now versus later might actually turn out in your favor
It's absolutely free of charge to register and play, and you're even provided with three complete decks to play with if you don't want to spend money on booster packs