1) because coming up with cards is very difficult and 2) because it stops all target removal, and board wipes from touching any of your artifacts Also, most players dont run exiles for artifacts, so it is very hard for your opponents to remove Darksteel Forge from the game
Choose three
This one not only picks a creature or planeswalker card from your opponents hand, but also tutors up any card from your library for three life (wow!), and even reanimates a creature from any graveyard into play under your control
Maybe we should have been playing it the entire time but look, Kraum, Ludevics Opus was bad until Jeweled Lotus was printed, okay
Can I Discard a Card with Madness
Notably, included among the cards was brand-new Pokmon TCG artwork depicting Pikachu reaching for a McDonald's hamburger