I dont want to get sidetracked there, especially when Mark Rosewater has made it abundantly clear that the topic is not open for discussion at this time
And in case you forgot, we typically get seven versions of every Standard rare / mythic as a baseline: a regular and a foil printing from boosters, an extended art and an extended art foil from Collector Boosters, a timestamped prerelease promo in foil, and a foil and a non-foil planeswalker stamped version from the Promo Packs
A slightly different approach, Clever Impersonator can enter the battlefield as a copy of your Lucky Clover instead of copying stuff from it
Gold Star Pokmon If you want scarcity and status, Gold Stars are hard to ignore
Topps Advanced Challenge is a non-game Pokemon trading card release from Topps, with cards featuring artwork from the Pokemon animated series plus foil chase cards
3 Dragon Of Mount Gulg - $207.15 Showcase Foil Here, dragon lore merges as MTG's Ancient Copper Dragon is re-imagined as the Red Dragon from Mount Gulg in the original Final Fantasy game