cards like training grounds mtg Agatha of the Vile Cauldron (foil) - Wilds of Eldraine and conquest Training Grounds (Card) | EDHREC

Its all-around great value with this one

You do get to pick and choose which permanent cards youre playing, so if theres a spell or two you dont want to cast you dont have to, though it does go straight to the graveyard

Players are more likely to sell those individually, and that means assessing the card's current market value, its physical condition, and more

Ruthless Technomancer is a nice companion card if you enjoy noodling around in the graveyard, and though Revel in Riches and Black Market are hugely popular, they paint a massive target on your back and often end up less impactful than curving out with a creature and keeping on the pressure

While cEDH primers tend to be quite long, they dont have to be the same for casual decks