Note the pull rates refer to your chance of pulling each card in a regular pack, and not in a rare pack (or god packs, as some fans call them).
While it feels a little underpowered in places, the general concept is an interesting one
For example, if three Fraying Sanity Auras are attached to one player who had four cards put into their graveyard this turn, X will be four for the first ability to resolve, eight for the second, and sixteen for the third
I especially like the market data report, as it gives me a huge advantage is knowing price trends, book value, and gives me leverage in negotiating prices with other collectors
The former is a 2/2 with flying and can cast a legendary, artifact (or Saga, but there are none here) into a free 3-drop or less creature card like Esper Sentinel or Zulaport Cutthroat