There are a bunch of cards that help you win quicker with less interaction From my experience, Poison is a challenging mechanic to win with: When you are the only Poison deck at the table, your damage doesn't "stack" with other opponents making you politically isolated
It was perceived as the worst color at ramping and drawing, making mono-white a brave choice for any Commander player
Alternatively, Mystic Sanctuary + self-sacrificing lands + Splendid Reclamation or Aftermath Analyst works
It did have a cantrip, but if you didnt have it in your hand at the right time, it just becomes a great card to drop for all of those other spells that require a discard of some kind
While some of the new cards, including Temmet, Naktamuns Will or Hashaton, Scarabs Fist, are very powerful, the reprinted Zombies in this deck are what truly make it shine