They can come in many different limited editions like holographics and promotional prints
Just for reference, here are some great cards that trigger Rendmaw: Ornithopter of Paradise, Eldrazi Conscription, and Whip of Erebos
Any "as [this permanent] enters" or "[this permanent] enters with" abilities of the copied token will also work
$0.49 Long River Lurker Bloomburrow $2.49 Bad River Mirage $0.49 Mercurial Transformation Strixhaven: School of Mages $5.99 Dour Port-Mage (0303 - Showcase) Bloomburrow Variants $0.79 Frogify Throne of Eldraine $2.99 Valley Mightcaller (0326 - Showcase) Bloomburrow Variants $0.35 Frog Tongue Tempest $1.49 Spore Frog Prophecy $9.49 Panharmonicon Kaladesh $0.49 Mistbreath Elder (0323 - Showcase) Bloomburrow Variants $3.49 Rampant Frogantua (0066 - Extended Art Ripple Foil) Modern Horizons 3 Commander Decks Variants $1.49 Grolnok, the Omnivore (Eternal Night) Innistrad: Crimson Vow Variants 0 results found
In the description, the eBay seller describes building the collection as "an amazing journey" where they "met collectors from around the world" and "got to work with all these amazing artists"
Freudian psychology talks of the fort-da game we play as kids, where we throw things away and want them back, which he links to the neurosis of repetition compulsion
