The reason for the jump seems to be Premodern, where some builds of Survival of the Fittest play the two-drop as repeatable removal that can be tutored up when the time is right
Unfortunately for Reshiram, the value of this card has been falling since its release in June 2025, particularly following the release of the English set of the same name
From there, if you find an engine, things get out of control more or less immediately
The deck then adds a number of spells with strong artifact synergy including card draw (Losheel), +1/+1 counters (Steel Overseer), burn (Ingenious Artillerist), direct damage (Mayhem Devil), drain (Mirkwood Bats, Nadier's Nightblade), and more
Silver Tempest didn't receive as many collections as other expansions, but it did have an Elite Trainer Box featuring Alolan Vulpix, a Booster Box, and a Build & Battle Stadium
A land that taps for two is usually pretty broken so why not have a land that taps for at least three times that