I just love how big of a payoff you get
That said, even among prebuilt decks, there is a wide range of power level differences
Black is middled a bit but the drop off between its best rare (Nightmare Shepherd) and its second best rare (Erebos, Bleak-Hearted) is steep
When an opponent goes to remove them, they are cheated into play a second time using Feign Death or Undying Malice
Typically, sources of red card draw will either come with the downside of forcing you to discard cards from your hand, or by exiling cards from the top of your library instead and only allowing you one or two turns to cast them
Creature Artifact - Horror Phyrexian Color tag templates(None) Reckless Scholar : Target player draws a card, then discards a card