Even though there will likely be a double-sided werewolf planeswalker and legendary werewolf creature in Shadows over Innistrad , I do not expect werewolf cards to increase Mayor of Avabruck or any of his werewolf buddies to increase in price significantly enough such that it would be worth buying in now for profit
Fill your deck with instants/sorceries that can be cast from your graveyard such as flashback (Ignite the Future), jump-start (Chemister's Insight), and aftermath (Refuse // Cooperate) to maximize Sevinne's ability
Normally the budget upgrade wouldn't include any additional Super Rare, but considering Gadget Hackwrench, Brilliant Boson is a key component of this deck's strategy, it's recommended to add at least one
Copy the decklist above to your clipboard by highlighting it, right clicking, and choosing Copy
War Drums are $11/$5, Armor is $4.70/$2.50, Breach is $40/$20, Harvest is $22/$17 (low spread), Aether is $60/$51, Hour is $51/$30