With strategic tapping, most of your opponent's permanents wouldn't untap, while yours would
1 Trainer card was awarded only to the World Championships winners
You can aim to be like a combo deck and do as much stuff as you can and win with a big turn out of nowhere, you can be like a ramp deck mainly using elves and elf synergy as a means to ramp quickly, or you can be like an affinity style aggro deck that dumps out onto the board with alarming speed
The only thing keeping Sygg at bay from the #1 spot is the "end of turn" delay on it
Beginning with Shards of Alaras release in 2008, the mythic rarity was introduced these cards are even rarer than rare cards and have an orange symbol
The targeted nature of Secret Lair drops has made it slow to catch on among players, but I suspect sooner or later one of these drops will get you the way the new heavy metal drop got me