mtg black defensive cards Commander Collection — Twenty Sided Defensive mono black deck ideas?

Nevil is all about making an entrance

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

Cloud, Midgar Mercenary Cloud, Midgar Mercenary, is one of the few non-Commander cards to make this list of valuable Character Borderless Surge Foil printings

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