Its best with cards that have valuable activated abilities or attack triggers you want to trigger immediately, such as Rowan, Scion of War, or Alena, Kessig Trapper
With all your Inventors out, cards like Aunt Cass become vital win conditions, and Institute of Technology becomes a passive clock on the game
Among other deals in MTG right now, you can still grab the Magic: The Gathering Secrets of Strixhaven Draft Night on sale for just over $80
If these cards didn't have words like "Blood" and "Sanguine" in their names I might not have put this combo in, but for a Blood-themed Vampire deck these make all the sense in the world
A lot of the other ideas posted above are fire, like you could pre-make a black and gold art UR binder for $100 too and as a collector that is a pretty good way to stretch your budget, but as a casual child collector the best part was opening packs because it feels like you earned your collection