B/W Aristocrats (Modern)

Recently discovered the Aristocrats archetype and I've fallen in love with it. This deck is really cheap and is really competitive, also. It is somewhere between a fully optimized list and a budget list. The expensive cards are only included because they are either really synergistic or are really needed. Fatal Push is absolutely perfect, Concealed Courtyard is a (relatively) cheap fastland that helps smooth out the budget mana base. Blood Artist is one of the big ways the deck wins, and both of Teysa Karlov's abilities are very relevant in this deck.

Edit: I've done a few upgrades and I really don't know the numbers on cards on Teysa Karlov and my fodder creatures. I feel like Rally the Ancestors is situational but can just win you the game. On the other hand, it's sometimes a mostly dead draw. Just make sure to return your Bloodsoaked Champion separately or when all your creatures returned with Rally Ancestors are exiled, you'll lose it, too. I would love suggestions from people who have experiments with Aristocrats because I'm sure it's a fine line between fodder, sacrifice outlets, and payoffs, and I want to get it right.