Lands are pretty straight forward, we're a Death's Shadow deck so we play 11 fetches and have perfect mana. You have 2 duals in a pinch. I'm at 18 right now, and it feels okay, might go up to 19 but for now between Wraiths and Looting it seems all right.
Creatures: 4 Bedlam Reveler. The deck is focused around Bedlam Reveler and Death's Shadow. I feel like they almost want to work together. Really powerful card, draw 3 on it is almost exclusively just a draw 3, or we discard a looting or a land we don't need. It's an amazing topdeck, and the synergy with Faithless looting is awesome, even if you drew 3 lands, just loot them away into hopefully not lands, or even 2 lands and a collective Brutality isn't that bad. Drawing 3 is great.
4 Death's Shadow. Not much to say about a 1 mana 6/6. We enable him pretty well in this deck, and he can just win games easily on his own.
4 Street Wraith. Might as well just read pay 2 cycle. Great with Death's Shadow.
Instants: 2 Kolaghan's Command. Great card, so much utility and it is always useful. We want to keep the deck low to the ground though and you want to always be dropping all the spells you can and be tapping out, so really try no more than 2. Card is great, it's always a 2 for one.
3 Lightning Bolt. Good card, kills Nobles, bolts people, it's really good. But it's not that great in this current meta I feel. that's why I don't run the full 4.
4 Manamorphose