Well rumor has it that the infamous Dark charmer (who may have originally planned to be in the artwork) has tinkered with this Pot to make it un-ending, but in doing so he may have accidentally, or perhaps quite purposefully, gave this valuable pot a dangerous curse, making it so the more goodies you pull out of it, the worse your life will become
I hope that your day is kicking butt and taking names
While Gishki Vanity offers valuable disruption, other cards like Royal Decree or Solemn Judgment may provide more versatile and consistent protection in a wider range of situations
That is, if you get your role tokens in your precon to begin with
Though thats a consistent theme, we have plenty of options that care about the graveyard or are simply zombies for flavor purposes, like the God-Eternals Nicol Bolas used to invade Ravnica