For each non-land permanent milled this way, you lose 1 life and a rad counter. This is quite interesting from a gameplay point of view
Fewer if you're using other Treasure generators
Theyre strong cards, even to some extent fun cards, which will have a major impact on the game
For graded cards, always verify the PSA certificate number at psacard.com/cert
Number 0 Language English Legal Formats Commander, Legacy, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pauper, Pioneer, Standard, Timeless Rulings (10/4/2004) The copy is both an artifact and an enchantment, so it is an artifact-enchantment (perhaps even an artifact-creature-enchantment)
As Nagashima put it, they add cards that can quickly turn the tables to make "kids feel like they have a competitive chance