This artifact makes me want to cackle like an evil villain at the thought of slamming it through some poor unsuspecting creature to immobilize it
Cards that are too expensive (7 or above), too hard to cast, or just don't make an impact on the board will generally go in one pile per color
1 Baral and Kari Zev
You could probably guess the type of deck Jump Scare
Vintage kept its restricted list, because some people wanted to play with powerful cards (and also because Type 1.5, aka legacy had started to take root, which, at the time, was just vintage with the restricted list renamed "banned list"), but in standard, you already couldn't play with all your cards, so there really wasn't any good reason to keep a restricted list
As for the foil value, the price tag shows just how under-opened Conspiracy was