Activate Chivalric Alliance by paying 2 and discarding a card, creating a 2/2 Knight creature token.
Activate Ashnod's Altar by sacrificing the Knight, adding CC.
When the Knight dies, Liliana triggers, causing you to draw a card.
Repeat.
This engine turns a pair of token-making specialists into a self-sustaining card-drawing machine, perfectly fueled by the mana from Ashnod's Altar. By spending the altar's colorless mana to activate Chivalric Alliance, you continuously forge new Knight tokens to feed back into the sacrifice engine. Every time one of those Knights meets its end, Liliana, Dreadhorde General steps in to reward the sacrifice with a fresh card draw, turning your graveyard into a wellspring of advantage.