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What they have in common: they share the characteristics that historically drive card values up a popular Pokemon, remarkable artwork, limited print runs, and low population at high grades

This artifact creature can be a combo-crazy commander with tap and untap artifacts, you can slot it alongside commanders that already do this sort of thing, like Trazyn the Infinite, or you can use it to reuse Agatha's Soul Cauldron

One final approach I can think of is pivoting to focus on lifegain to use the Griffin Aerie in your maybeboard

Escape is a mechanic from Theros Beyond Death that lets you replay spells from the graveyard

So, you can exile a bunch of cards from someone elses graveyard and get some use from their creatures as well as your own