It's also the catalyst for many combos involving bounce lands (like Simic Growth ChamberSimic Growth Chamber), allowing them to tap for mana and bounce themselves
Check the bookcase in the corner, and you're still being watched
However, the biggest problem with Prank-Kids was that it needed a minimum of two cards to go off
or even One Piece, Digimon, Star Wars: Unlimited or anything else in between thinning your opponents deck is rarely helpful to you
It can be tricky, knowing every promo card you can get, how to obtain it, and how long it will be available
Sure, there are a couple of reasons other than spell count to mill a specific player, like, scry, Sams Desperate Rescue, or Haunt of the Dead Marshes