Most notably, if a triggered ability asks its controller to pay a cost, you pay that cost for the copy if you wish to have it paid.
1 River Song + Timestream Navigator One of the strangest Magic cards to ever be printed, River Song has you draw cards from the bottom of your library instead of the top
There are many expensive Dimir cards in Gatecrash and although your opponents could be blown away by drawing Gruul cards, they may also be playing Boros
Image adapted from: GradedExchange via eBay, Bitz & Button There are a few companies you can send your cards to to get them graded, such as PSA , BGC , and CGC
It's easier to reach Mythic in the last week of the season since most grinders and players have already moved to Mythic
Along with the pockets of kids who were pulling them most likely not being big enough yet to be searching for graded copies