So, for example, if you cast Deadpool, Trading Card and trade text boxes with and opponent's Solemn Simulacrum, when Deadpool enters you'll get to fetch a basic land , and draw a card when he dies
The cards are milled all at once, which means abilities that trigger "whenever one or more nonland cards are milled" will trigger exactly once as long as at least one nonland card was milled
Extended art foil One Rings are obscenely expensive, but actually cannot be found in Collector Booster packs
Furthermore, things like fetch lands or cards like Spore Frog or Sakura-Tribe Elder that require them to be sacrificed will go straight to the Tergrid player when she's on the battlefield
It might be tempting to jack their Squire, but oftentimes the Elspeth is going to be a little scarier
Commander players, get ready for some curtailed games next time you face mono-green