While silver and gold versions exist, we havent seen them appear in auctions, although PSA lists four copies of the gold trophy print graded at PSA 8,9, and 10
The Darkness Ablaze contributions to this list are the titular Galarian Sirfetchd and his Basic version Galarian Farfetchd, which cost next-to-nothing due to being brand spankin new and coming in a theme deck
This mechanic doesnt work without tokens, so generating them is an accompanying theme in this deck
According to the listing, the Magic: The Gathering First Edition Artist Proof set will be available for as little as $2.2 million
Pillar Analysis: Legendary Power (Artifact Mana), Scarcity (Antiquities, Reserved List), Format Defining (Vintage)