Most Magic cards are not legendary, meaning they represent a more generic castle, or goblin, or helmet
At the beginning of each players draw step, that player exiles the top card of their library
I like it the best in blue/green Town decks because that deck can splash other colors easily and doesnt care about giving them a token (a token thats way more of a liability in this format due to all the decent equipment)
Beyond that, it can be good anytime you want a high number of creatures in your deck
As weve come to expect in the age of limited print run Lairs, some players have got their hands on the goods already
The same applies to the Shadowless Base Set yellow Cheeks Pikachu, which was also printed on Japanese cardstock in the Pokmon Song Best Collection CD