There arent enough aggressively costed red removal spells worth playing
Prosper, Tome-Bound requires considerably more setup to use optimally, but if your deck is already playing a lot of cards that let you play cards from exile, the value it generates from its Treasure tokens can be absolutely silly
Well also be picking cards based on their broad playability, so cards like Mirrorform, which are unlikely to see use outside of Commander, wont earn slots here
More on Fangs work can be found at his website online here, as well as on Instagram and Cara
It's the idea that you're trapped, that your air supply is diminishing, and that you're buried so deep that you'll never be found and will die a slow and painful death
Additionally, for the cost of four generic mana and tapping, you can sacrifice Throne of the High City to become the monarch