At the beginning of each scenario, after investigators draw opening hands, Lola Hayes must choose a role (Neutral, Guardian, Seeker, Rogue, Mystic, or Survivor)
That seems reasonable enough, but pretty low impact
If you want to dive even deeper into the rules, see the Rule Manual and FAQ section!
Still, while blues history with this is all about changing costs and not much more, black has a more detailed history, which gives us clues into how WotC views different resources and their values
For the low price of exiling three cards and paying for the card again, it gets to come back into play to cascade all over again
I became more discontented with the way the company did many things but I dont believe thats what you are asking