Magic: Coldsnap "Spoiler"
White Blue Black Red Green Gold Artifact Land
Here's a few of my favourites:
Lucky Pendant
2
Artifact
1, T: Look at the top card of your library. You may sideboard that card out at the end of this game.
Brief Fright
B
Instant
Bury target non-black non-artifact creature until end of turn.
Narcopotence
BBB
Enchantment
Skip your sleep phase.
Whenever you may do something, you don't.
You may play any number of lands each turn.