You should include Tattermunge Duo and Squeaking Pie Grubfellows. The first speeds up your clock by adding a second attacker. Both go great with Bosk Banneret, and the second also benefits from the shaman thing you have going.

Ah, and Nylea's Presence would aid you if you decide to include Tattermunge Duo. Mire Boa, Street Wraith, and Warthog would be other good thoughts.

Have you thought of adding Battlewand Oak? A single activation of it's triggered ability makes it a 3/5, which is big enough to shake a stick at (parden the pun) especially in pauper, where most creatures are 1-2 CC with 2-3 toughness.

I love Battlewand Oak! It's an amazing card especially for a common. The problem with him for this deck is that his toughness bonuses don't carry into next turn so he's not a better defender than the creatures I already have in the deck and since I plan to have Bog-Strider Ash and Tattermunge Duo doing the attacking I don't really have a use for his abilities in this deck.

I appreciate the suggestion though :)

I was looking through cards, and I saw Grim Contest, and thought about this deck when I wondered what kind of deck it would go in.