Arcbound Ravager Market Price: $17.37 I started playing MTG in 2010, which feels like ages ago now, but was still too late to see Ravager, Disciple of the Vault, Thoughtcast, and Shrapnel Blast wreak havoc on Standard, enough to get multiple cards from that deck banned in 2005
In short, the black border means default, and usually nothing exciting
It has the potential to grow, but I think it will stay right about where it is currently
The answer is a combination of product strategy and what could be called the lottery ticket effect
These cards were only distributed to staff members during the Ultra Prism prerelease events in the Sun & Moon era
English cards from popular modern sets have the larger market, but Japanese-exclusive cards and sealed product have shown strong appreciation trends