I've tried a few budget/pauper decks (with zero rares or legendaries), and this one seems to work the best. I was genuinely able to win games against real decks, using this deck.
The deck plays as a sort of midrange aggro buff deck. The Quoakka is a central unit, especially if you can equip it with the Hive Stinger. That combo makes it attack as a 7/6 overwhelm, as early as turn 3.
Quoakka and Hive Hexagon are the reasons for the life gain in the deck.