mtg exile the top card of your library Plargg and Nassari [March Machine: The Aftermath] Exile our opponents libraries for

Faster and more aggressive decks are much more widely played as a result

The final room of The Undercity is a pretty huge swing, but introducing the initiative into a game where you're unable to defend it is a losing proposition

Any deck running two colors or more has basically no reason not to include it, since it provides perfect fixing with no drawbacks

The One Ring is a key artifact from Tolkiens world of Middle-earth and an all-powerful unique item

I just want to take a moment to go over the easier interactions and what some of these effects might look like

I might be willing to call it a tie for number one, because Shelob is a blowout