Aside from some minor gameplay edges from having uniquely named basics (trying to improve the odds on your Tainted Pact or hurt your opponent's potential Predict), there weren't really many reasons to actually play snow-covered lands in your deck
After the Scars of Mirrodin block introduced metalcraft, another artifact-related mechanic, the affinity decks started to add metalcraft cards like Mox Opal, Carapace Forger, Etched Champion, and Galvanic Blast
Electrostatic Pummeler: The pay clause means you have to boost the living daylights out of it to profit
Repurposing Bay is a rather interesting artifact that could be strong with some building around it, but considering that Oswald Fiddlebender doesnt see much play, its tough to tell just how good the card will be
Land Color tag templates(None) Mystic Monastery This land enters tapped