While at first glance, Black and White may appear to be two of the most polar opposite colors in all of Magic: The Gathering, when working in conjunction, the colors bring a lot of power to the table
Its Dynastic Codes ability will then trigger, providing you with some card advantage in exchange for a mostly negligible amount of life loss
Your only real payoffs are basically the Thriving cycle from Kaladesh (Thriving Grubs, Thriving Rats, Thriving Rhino) and the Aether creature cycle from Aether Revolt (Aether Chaser, Aether Poisoner, Aether Swooper)
Some players like to throw a lot of spells around and Storm their way to victory
Even outside of that, Culling Ritual is a great tool to get rid of common mana rocks, draw engines like Mystic Remora, as well as any other powerful cards that come into play quickly
Bloodtithe Collector is a mid-game card that should be saved, as its primary ability relies on the loss of a life