Theyre very popular as a result, because everyone is at the mercy of Lady Luck, instead of having the advantage of an expensive deck
But a little fast mana or a card like Narset, Parter of Veils or Orcish Bowmasters to inhibit or punish the card draw can turn them into powerful tools
Thus, with first sale doctrine, less alterations are better because alterations could preclude the doctrine, but with fair use more alterations may be preferred because it is a more transformative use
Anyways, let me know your favorite cards that didnt make the list in the comments
Once you have a direction or two you have to pick exclusively cards that work with them
I liked Murray as a reference to the Monkey Island games, you know, that thing the youths cared about even back then