This pairs nicely with Agate Instigator and leads me to my final honourable mention of Molten Gatekeeper
Urza's Saga The most value from a single land card Urza's Saga is a one-card value engine for any deck that cares about artifacts
Then, it allows sources controlled by the owner that deal damage to an opponent or permanent to deal that much damage plus the number of fire counters of Fated Firepower, meaning that 3 counters would make a 1/1 creature deal 4 damage, instead
shot up 574% between 2019 and 2020, with collectors looking to buy that Pikachu card they coveted as a child with money unspent during the pandemic
This is a great way to save money while still enjoying the game with a full deck
Because this bounces back to hand to do the thing, you cant build an engine around sacrificing one Minister of Inquiries to get back another, netting energy