gold potion pokemon card is:gold Age Group Doc's Potion Packs – Dr

Fyndhorn Elves, from 1995's Ice Age expansion, is neither incredibly powerful nor incredibly valuable - its original printing has never cost more than a few dollars, and mechanically identical cards exist and only see niche play

Song of Freyalise As one of the cheapest Sagas available at two mana, you wouldnt expect Song of Freyalise to generate the absurd value that it does

It goes particularly well with a sacrifice outlet such as Viscera Seer, or Ashnods Altar if you want to generate colorless mana

Then there are the Arena-specific formats which can have a somewhat sporadic availability, like Momir or Oko's Madness, both of which involve making random creatures by discarding lands