Teferis final ability lets you tap creatures you control to tuck a nonland permanent with mana value equal to or less than the number of creatures you tapped back into an opponents library
For two mana you get to look at the top three cards of your library and take two of those cards, the minor downside being that you must play one of them this turn
I believe this could be real
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These have a 0.5% inclusion rate as your 4th card, and 2% as your 5th card: Dhelmise ex Incineroar ex Crabominable ex Alolan Raichu ex Solgaleo ex Lana Sophocles Mallow Lillie Dhelmise ex (rainbow border) Incineroar ex (rainbow border) Crabominable ex (rainbow border) Alolan Raichu ex (rainbow border) Solgaleo ex (rainbow border) Last, but not least, your standard Full Art cards
Later, CGC Trading Cards would also certify a Nidoran from the same set, also with a Magic back