To be fair, Hallowed Fountain is the only serialized Shock Land we can find around the most expensive cards on Cardmarket
Goldspan Dragon doesn't double your Treasure, but it does double their mana production
Its main chase card (Umbreon ex-161/131) is commanding over $800, with lower-end SIR cards still pulling well over $100
Self-Bounce a Creatures (16) Entity Tracker x2 Fear of Isolation x4 Nurturing Pixie x4 Optimistic Scavenger x4 Spyglass Siren x2 Instants (6) Cut Down Go for the Throat This Town Ain't Big Enough x4 Enchantments (15) Hopeless Nightmare x4 Nowhere to Run x4 Sheltered by Ghosts x3 Stormchaser's Talent x4 Lands (23) Adarkar Wastes x2 Concealed Courtyard x4 Darkslick Shores x4 Gloomlake Verge x2 Island x2 Meticulous Archive x3 Seachrome Coast x4 Underground River x2 Sideboard (15) Destroy Evil x2 Kaito, Bane of Nightmares x2 Loran of the Third Path Pest Control x2 Rest in Peace x3 Split Up Sun-Blessed Healer x2 Tithing Blade x2 I love a deck that turns drawbacks into advantages
Serum Visions and Sleight of Hand are more important than Dictates, and both are more important than Time Walks
One of the coolest, zonkiest, card concepts comes from the title and drips down