In both cases, you get to choose which card you will lose unless specified that your opponent chooses instead
This has changed over the years, so you no longer even need to acknowledge that a card like Saprazzan Raider exists
Fans will be used to this by now, but at the time it was quiet the innovation that this set (and the next one) would be available in paper at prerelease events prior to its digital launch
As you probably know, one of the fundamental laws of Commander is that you can only have one copy of each card in your deck (barring basic lands, of course)
Plaza of Heroes might be one of the best cards in the set, and its a plant for Commander for sure
Farewell The War Crime Of Boardwipes Farewell is easily one of, if not the, most controversial card in Magic: The Gathering