Once it's online, you'll be able to make more green mana than you'll likely ever need, throwing out more and more creatures and spiraling out of control
Whenever Gollum, Scheming Guide attacks, look at the top two cards of your library, put them back in any order, then choose land or nonland
Activating encore on Coastline Marauders can give you three enormous threats to cut your opponents down to size, and bringing back Impulsive Pilferer can nab you a few treasures for a particularly explosive subsequent turn
If you somehow control Phenomenon Investigators and no choice was made for it (perhaps because another permanent on the battlefield became a copy of it, or it was manifested and later turned face up), it has neither of the two triggered abilities, no matter how much you want to believe (or doubt)
Card designs celebrating the game's 1st anniversary
Amazons current deal, which brings it down to $148.62 (as of this writing), means each pack is $4.95