Tutors used to pull Dark Ritual.

Now that we have Dark Ritual this is where the deck really shines.

Darkest Hour + Teysa, Orzhov Scion is the basic setup for infinite tokens. Because of Teysa's ability combined with Darkest Hour's effect every time a token dies another one immediately spawns in.

So now that we have infinitely regenerating tokens we can use Debt to the Deathless + Phyrexian Altar for an instant win or even easier just a Blasting Station for an even simpler win.

Remember, you don't need to spend mana you get from sacrificing tokens Ashnod's Altar + Twilight Drover gives you a creature of whatever power and toughness you desire or gain infinite life with a Suture Priest .